OnlyOneOf

On May 1, 8D Creative announced the debut of a seven-member group called OnlyOneOf, which stands for "someone's only one".{{Cite web |last=Yoon |first=Gi-baek |date=May 1, 2019 |title=아이즈원 강혜원 소속사, 신인 보이그룹 '온리원오브' 론칭 |url=https://entertain.naver.com/now/read?oid=396&aid=0000511399 |access-date=December 4, 2022 |language=ko |archive-date=December 4, 2022 |archive-url=https://web.archive.org/web/20221204142642/https://entertain.naver.com/now/read?oid=396&aid=0000511399 |url-status=live }} The style pursued by the group was described as "ubersexual," indicating a mix of softness and strong masculine sexiness. The members trained for three years, coming up with songs, stage composition, costumes and concepts themselves for the weekly evaluations.{{Cite web |date=June 25, 2019 |title=[인터뷰②] 온리원오브 "토종 韓그룹, 규빈 20세때 보이스피싱 당해" |url=https://www.chosun.com/site/data/html_dir/2019/06/26/2019062600546.html |access-date=December 4, 2022 |language=ko |archive-date=December 4, 2022 |archive-url=https://web.archive.org/web/20221204181814/https://www.chosun.com/site/data/html_dir/2019/06/26/2019062600546.html |url-status=live }}

It was revealed on May 24 that the group would debut four days later with two title tracks, "Savanna" and "Time Leap", as part of a mini album titled Dot Point Jump.{{cite web |date=May 24, 2019 |title='고품격 루키' 온리원오브, 대중 참여형 발매 방식 눈길 |url=http://www.wowtv.co.kr/NewsCenter/News/Read?articleId=A201905240325 |access-date=December 4, 2022 |language=ko |archive-date=November 18, 2022 |archive-url=https://web.archive.org/web/20221118084117/https://www.wowtv.co.kr/NewsCenter/News/Read?articleId=A201905240325 |url-status=live }} Only the two songs were released on that day along with the music videos, while the other four tracks were revealed sequentially for each 5,555 use of the hashtag "#OnlyOneOf" on Twitter.{{Cite web |date=May 29, 2019 |title=온리원오브, 트위터 해시태그 '#OnlyOneOf' 5555개 돌파…신곡 'blOssOm' 추가 공개 |url=https://www.etnews.com/20190529000276?SNS=00002 |access-date=December 4, 2022 |language=ko |archive-date=December 4, 2022 |archive-url=https://web.archive.org/web/20221204180313/https://www.etnews.com/20190529000276?SNS=00002 |url-status=live }}{{Cite web |date=May 18, 2019 |title=[인터뷰] '데뷔' 온리원오브 "갓세븐 선배님 팬, 데뷔활동 설레요" |url=https://mnews.jtbc.co.kr/News/Article.aspx?news_id=NB11824834 |access-date=December 4, 2022 |website=mnews.jtbc.co.kr |language=ko |archive-date=December 4, 2022 |archive-url=https://web.archive.org/web/20221204180313/https://mnews.jtbc.co.kr/News/Article.aspx?news_id=NB11824834 |url-status=live }} Members KB, Love and Nine participated in writing and composing two songs.{{Cite web |date=July 7, 2019 |title=온리원오브, 시작점부터 다른 새로운 아이돌의 탄생[SS인터뷰] |url=https://m.news.zum.com/articles/53584626 |access-date=December 4, 2022 |language=ko |archive-date=December 4, 2022 |archive-url=https://web.archive.org/web/20221204180309/https://m.news.zum.com/articles/53584626 |url-status=live }} "Savanna" was considered a viral YouTube hit, gaining more than 10 million views in five months.{{Cite web |last=Morin |first=Natalie |date=November 22, 2019 |title=Songwriter Candace Sosa On The Freedom Of Making K-Pop Music |url=https://www.refinery29.com/en-us/2019/11/8777756/candace-sosa-k-pop-songwriter-bts-only-one-of |access-date=December 5, 2022 |website=www.refinery29.com |language=en |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205092400/https://www.refinery29.com/en-us/2019/11/8777756/candace-sosa-k-pop-songwriter-bts-only-one-of |url-status=live }}

As part of the promotions of their first EP, the group performed on music shows for seven weeks, held a 4-hour fansigning event, and worked as baristas in Seoul, Busan and Gwangju.{{Cite web |date=June 24, 2019 |title=온리원오브, 데뷔 첫 팬사인회 4시간 넘겼다…'남다른 교감' |url=https://www.mk.co.kr/star/musics/view/2019/06/449215/ |access-date=December 4, 2022 |language=ko |archive-date=December 4, 2022 |archive-url=https://web.archive.org/web/20221204180308/https://www.mk.co.kr/star/musics/view/2019/06/449215/ |url-status=live }}{{Cite web |last=Choi |first=Jae-kyung |date=September 25, 2019 |title=[공식] 엠넷 M2, 온리원오브의 데뷔 첫 리얼리티 '연애잠금해제'...10월 1일 첫방 |url=https://www.sedaily.com/NewsView/1VODRG42O6/GL0103 |access-date=December 4, 2022 |language=ko |archive-date=December 4, 2022 |archive-url=https://web.archive.org/web/20221204180309/https://www.sedaily.com/NewsView/1VODRG42O6/GL0103 |url-status=live }} Starting October 1, they released the 8-part reality show OnlyOneOf Love Unlock through Mnet and M2.

On October 4, the first teaser for their second mini album Line Sun Goodness was uploaded to YouTube, announcing that their first comeback would take place in the same month. A week later, the individual teaser photo for Yoojung was released, revealing the album would be released on October 30.{{Cite web |last=Gong |first=Mi-na |date=October 14, 2019 |title=온리원오브, 30일 컴백..붉은 미사보 쓰고 신비감↑ |url=https://m.mt.co.kr/star/view.html?no=2019101408512866000 |access-date=December 5, 2022 |language=ko |archive-date=August 18, 2023 |archive-url=https://web.archive.org/web/20230818121511/https://m.starnewskorea.com/view.html?no=2019101408512866000 |url-status=live }} Due to technical difficulties, the music video for the title track "Sage" was not released until three days later, on November 2.{{Cite tweet|number=1189458473982971905|user=OnlyOneOf_twt|title=[#Notice/📌] Hi all, this is RSVP. There has been a little technical problem of setting up the music vedio to release.|author=OnlyOneOf official|date=October 30, 2019|access-date=December 5, 2022|language=en}} The song explores, both in the lyrics and through the visuals of the music video, temptation and redemption, and the mythology and characters behind OnlyOneOf's concept, which has been developed by creative director and producer Jaden Jeong over three years taking inspiration from religion and the Bible.{{Cite web |last=Chakraborty |first=Riddhi |date=July 14, 2020 |title=OnlyOneOf: Pushing Forth An Art Pop Dream |url=https://rollingstoneindia.com/onlyoneof-pushing-forth-an-art-pop-dream/ |access-date=December 5, 2022 |website=Rolling Stone India |language=en-US |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205105819/https://rollingstoneindia.com/onlyoneof-pushing-forth-an-art-pop-dream/ |url-status=live }}{{Cite web |last=Bell |first=Crystal |date=November 1, 2019 |title=Jaden Jeong Made You Stan LOONA, And Now He'll Do The Same With OnlyOneOf |url=https://www.mtv.com/news/4ppn2n/jaden-jeong-onlyoneof-loona-interview |access-date=December 5, 2022 |website=MTV |language=en |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205093902/https://www.mtv.com/news/4ppn2n/jaden-jeong-onlyoneof-loona-interview |url-status=dead }} KB, Love and Nine once again wrote lyrics, music, and arrangements for three out of six tracks.{{Cite web |last=Jung |first=Da-hoon |date=October 30, 2019 |title=[종합] '온리원오브' BTS 작곡가와 손 잡았다.."유일무이한 팀 될 것" |url=https://www.sedaily.com/NewsView/1VPQ2DCZ9T/GL0301 |access-date=December 5, 2022 |language=ko |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205092345/https://www.sedaily.com/NewsView/1VPQ2DCZ9T/GL0301 |url-status=live }}

Following the release of their second EP, OnlyOneOf toured Malaysia from November 22 to November 24.{{Cite web |last=DM |first=Florey |date=November 15, 2019 |title=OnlyOneOf is holding their first tour in Malaysia this November |url=https://sg.style.yahoo.com/onlyoneof-holding-first-tour-malaysia-090500774.html |access-date=December 5, 2022 |website=sg.style.yahoo.com |language=en-SG |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205092400/https://sg.style.yahoo.com/onlyoneof-holding-first-tour-malaysia-090500774.html |url-status=live }}{{Cite web |date=December 23, 2019 |title=[Exclusive] OnlyOneOf Shares Their Best Memory in Malaysia & The Meaning Behind Their Unique Names |url=https://www.gokpop.co/2019/12/exclusive-onlyoneof-shares-their-best.html |access-date=December 5, 2022 |language=en |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205092400/https://www.gokpop.co/2019/12/exclusive-onlyoneof-shares-their-best.html |url-status=live }}

On January 30, OnlyOneOf released the single album Unknown Art Pop 2.1, featuring the songs "Dora Maar" and "Picasso,"{{Cite web |title=OnlyOneOf (온리원오브) 'dOra maar' 녹음 비하인드 스토리 공개! |url=https://www.genie.co.kr/magazine/subMain?ctid=1&mgz_seq=7964 |access-date=December 5, 2022 |website=www.genie.co.kr |language=ko |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205102400/https://www.genie.co.kr/magazine/subMain?ctid=1&mgz_seq=7964 |url-status=live }} which talk about the relationship between Pablo Picasso and Dora Maar from two different perspectives. At the same time, they launched a contest for participants to write English lyrics for "Dora Maar", with the winner receiving a cash prize of $100,000, as well as having their version released as the official international version at a later date.{{Cite web |last=Kim |first=Min-ji |date=February 12, 2020 |title=온리원오브 준지 "파격 헤어스타일? 콘셉트와 맞아, 관심 감사" |url=https://www.news1.kr/articles/3840367 |access-date=December 5, 2022 |website=News1 |language=ko |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205102355/https://www.news1.kr/articles/3840367 |url-status=live }}{{Cite web |last=Hodoyan-Gastelum |first=Alexis |date=February 29, 2020 |title=OnlyOneOf aims to create English lyrics with fan contest |url=https://www.upi.com/Entertainment_News/Music/2020/02/29/OnlyOneOf-aims-to-create-English-lyrics-with-fan-contest/8321582744940/ |access-date=December 5, 2022 |website=UPI |language=en |archive-date=May 23, 2022 |archive-url=https://web.archive.org/web/20220523023123/https://www.upi.com/Entertainment_News/Music/2020/02/29/OnlyOneOf-aims-to-create-English-lyrics-with-fan-contest/8321582744940/ |url-status=live }} Praising their "avant-guarde approach," Billboard named them one of the K-pop rookie groups to watch in 2020.{{Cite magazine |last=Benjamin |first=Jeff |date=January 31, 2020 |title=5 New K-Pop Acts to Watch in 2020 |url=https://www.billboard.com/music/music-news/kpop-groups-to-watch-2020-everglow-cix-hinapia-oneus-onlyoneof-8549798/ |access-date=December 5, 2022 |magazine=Billboard |language=en-US}}

On April 30, it was announced that OnlyOneOf would launch the Produced by [ ] series, which would act as a parenthesis among the group's regular releases: the first one, Produced by [ ] Part 1, was produced by Gray, Boycold, and Cha Cha Malone.{{Cite web |date=May 1, 2020 |title=온리원오브, 의문의 티저 공개…'produced by [ ] part 1' 그 의미는? |url=https://m.sportsworldi.com/view/20200501508891 |access-date=December 12, 2020 |website=Sports World |language=ko |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205102356/https://m.sportsworldi.com/view/20200501508891 |url-status=live }} The three-track single album was released on May 21 along with the title track "Angel", an EDM and hip-hop song by Gray,{{Cite web |last=Go |first=Seung-ah |date=May 21, 2020 |title=온리원오브 규빈 "꿈에 그리던 그레이와 작업, 음악적 역량 닮고파" |url=https://www.news1.kr/articles/3941089 |access-date=December 5, 2022 |website=News1 |language=ko |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205102354/https://www.news1.kr/articles/3941089 |url-status=live }}{{Cite magazine |date=May 21, 2020 |title=Why OnlyOneOf Recruited Three of K-Pop's Trendiest Producers For Their New EP |url=https://www.billboard.com/music/music-news/onlyoneof-interview-produced-by-ep-9388051/ |access-date=December 5, 2022 |magazine=Billboard |language=en-US}} who declared he had wanted to collaborate with OnlyOneOf for the traditional K-pop atmosphere and elegant vibe of their music.{{Cite web |last=Jung |first=Byung-geun |date=May 25, 2020 |title=[TF초점] 그레이, 보이그룹 첫 프로듀싱 '왜' 온리원오브였나 |url=http://fannstar.tf.co.kr/news/view/1794772?Code=kr |access-date=December 5, 2022 |language=ko |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205102400/http://fannstar.tf.co.kr/news/view/1794772?Code=kr |url-status=live }}

The second single album, Produced by [ ] Part 2, featured three songs by GroovyRoom, Samuel Seo, and JR Groove: it was released on August 27 with the title track "A Song of Ice & Fire",{{Cite web |last=Shin |first=Ji-won |date=August 15, 2020 |title=온리원오브, 서사무엘 합류…프로듀서 골든 라인업 완성 |url=https://www.hankyung.com/entertainment/article/202008151764I |access-date=December 5, 2022 |language=ko |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205102359/https://www.hankyung.com/entertainment/article/202008151764I |url-status=live }} which was based on the omonymous novel series by George R. R. Martin.{{Cite web |last=Park |first=Se-yeon |date=August 20, 2020 |title=온리원오브 트랙리스트 공개…아이돌 프레임 넘어선 음악 |url=https://www.mk.co.kr/star/musics/view/2020/08/858833/ |access-date=December 5, 2022 |language=ko |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205102354/https://www.mk.co.kr/star/musics/view/2020/08/858833/ |url-status=live }}{{Cite web |last=Chakraborty |first=Riddhi |date=August 27, 2020 |title=OnlyOneOf Drop Captivating Video for 'A Song of Ice & Fire' |url=https://rollingstoneindia.com/onlyoneof-drop-captivating-video-for-a-song-of-ice-fire/ |access-date=December 5, 2022 |website=Rolling Stone India |language=en-US |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205105820/https://rollingstoneindia.com/onlyoneof-drop-captivating-video-for-a-song-of-ice-fire/ |url-status=live }} Compared to the first installment of the series, Produced by [ ] Part 2 presented more melodic than hip-hop music.{{Cite web |last=Kim |first=Soo-jung |date=August 27, 2020 |title=[현장EN:]온리원오브, '무대 얼려버릴 열정' 품고 컴백 |url=https://www.nocutnews.co.kr/news/5402507 |access-date=December 5, 2022 |website=No Cut News |language=ko |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205102354/https://www.nocutnews.co.kr/news/5402507 |url-status=live }}

On April 8, 2021, OnlyOneOf released their third mini album Instinct Part. 1 with the title track "Libido", a song about sexual instinct and impulses that saw KB and Nine participating in composition and arrangement.{{Cite web |last=Kim |first=Hyun-sik |date=April 8, 2021 |title="소년감성·섹시 결합"…온리원오브, 이번에도 평범함 거부 [종합] |url=https://news.nate.com/view/20210408n33513?mid=n1101 |access-date=December 5, 2022 |language=ko |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205183050/https://news.nate.com/view/20210408n33513?mid=n1101 |url-status=live }} The group explained that it had always been debated whether the topic was art or obscenity, and that they wanted to break a taboo never dealt with by other groups.{{Cite web |last=Hong |first=Hye-min |date=April 8, 2021 |title=[HI★현장] 온리원오브는 왜 '금기'에 도전했나 |url=https://www.hankookilbo.com/News/Read/A2021040815020002900?t=20221206032149 |access-date=December 5, 2022 |language=ko-KR |archive-date=December 5, 2022 |archive-url=https://web.archive.org/web/20221205183049/https://www.hankookilbo.com/News/Read/A2021040815020002900?t=20221206032149 |url-status=live }} Overall, the whole album explores the theme of instinct, and deals with the sexy concept Jaden Jeong had in mind when OnlyOneOf was created.{{Cite web |last=Lee |first=Jung-soo |date=April 19, 2021 |title=[단독 인터뷰] "온리원오브, 소년의 아름다움 표현… 파트2는 '극락'" |url=https://en.seoul.co.kr/news/newsView.php?id=20210419500035 |access-date=December 7, 2022 |language=ko |archive-date=December 7, 2022 |archive-url=https://web.archive.org/web/20221207183521/https://en.seoul.co.kr/news/newsView.php?id=20210419500035 |url-status=live }}

The members touching each other's bodies and using strings in the choreography caused a controversy for being too suggestive as soon as they performed "Libido" on M Countdown on April 9, to which OnlyOneOf responded that it emphasized the theme of the music and that they hoped the public could focus on the overall aesthetic and expressive power.{{Cite web |last=Jung |first=Hyeon-tae |date=April 9, 2021 |title=신곡 무대서 '성욕' 퍼포먼스해 논란 일으킨 남돌이 직접 밝힌 입장 |url=https://www.insight.co.kr/news/332965 |access-date=December 7, 2022 |language=ko |archive-date=December 7, 2022 |archive-url=https://web.archive.org/web/20221207181238/https://www.insight.co.kr/news/332965 |url-status=live }}{{Cite web |last=Hwang |first=Mi-hyun |date=April 9, 2021 |title=[단독] 온리원오브 "19금 퍼포먼스 논란? 전체적 미적 퍼포먼스 봐주길"(인터뷰) |url=https://news.mt.co.kr/mtview.php?no=2021040912148211362 |access-date=December 7, 2022 |website=News1 |language=ko |archive-date=December 7, 2022 |archive-url=https://web.archive.org/web/20221207181237/https://news.mt.co.kr/mtview.php?no=2021040912148211362 |url-status=live }} Instinct Part. 1 recorded the highest daily sales for the group since debut – 27,926 copies according to the Hanteo Chart and 25,872 copies for the Gaon Chart – and exceeded 50,000 as of April 14.{{Cite web |last=Lee |first=Da-kyum |date=April 14, 2021 |title=온리원오브, '리비도' 새 MV 공개...소년의 본능과 충동 |url=https://www.mk.co.kr/star/musics/view/2021/04/357891/ |access-date=December 7, 2022 |website=Star Today |language=ko |archive-date=December 7, 2022 |archive-url=https://web.archive.org/web/20221207181232/https://www.mk.co.kr/star/musics/view/2021/04/357891/ |url-status=live }}{{Cite web |title=Circle Retail Album Chart - 2021.04.09 |url=https://circlechart.kr/page_chart/retail.circle?termGbn=day&yyyymmdd=20210409 |access-date=December 7, 2022 |website=Circle Chart |language=en |archive-date=December 7, 2022 |archive-url=https://web.archive.org/web/20221207181242/https://circlechart.kr/page_chart/retail.circle?termGbn=day&yyyymmdd=20210409 |url-status=live }}{{Cite web |last=Choi |first=Ji-ye |date=April 12, 2021 |title=온리원오브, 데뷔 첫 일간 음반 랭킹 1위 [공식] |url=https://www.hankyung.com/entertainment/article/2021041234114 |access-date=December 7, 2022 |language=ko |archive-date=December 7, 2022 |archive-url=https://web.archive.org/web/20221207181234/https://www.hankyung.com/entertainment/article/2021041234114 |url-status=live }} On the same day, OnlyOneOf released the Guilty Pleasure version of the "Libido" music video. At the end of the year, "Libido" was chosen as the best Korean music video of 2021 by Rolling Stone India for breaking boundaries and representing the LGBTQ+ community.{{Cite web |last1=Chakraborty |first1=Riddhi |last2=Dongre |first2=Divyansha |last3=Majumder |first3=Oysmita |date=January 4, 2022 |title=21 Best Korean Music Videos of 2021 |url=https://rollingstoneindia.com/21-best-korean-music-videos-of-2021/ |access-date=December 8, 2022 |website=Rolling Stone India |language=en-US |archive-date=January 6, 2022 |archive-url=https://web.archive.org/web/20220106160716/https://rollingstoneindia.com/21-best-korean-music-videos-of-2021/ |url-status=live }}

In May, KB, Love and Rie sang "Into You" for the webseries The Sweet Blood.{{Cite web |date=May 20, 2021 |title=온리원오브, '달달한 그놈' OST 가창…'빠져들겠어' |url=https://www.edaily.co.kr/news/read?newsId=01154566629050888&mediaCodeNo=258 |access-date=December 8, 2022 |website=EDaily |language=ko |archive-date=September 26, 2021 |archive-url=https://web.archive.org/web/20210926003406/https://www.edaily.co.kr/news/read?newsId=01154566629050888&mediaCodeNo=258 |url-status=live }} On July 15, OnlyOneOf released their third single album Produced by [Myself], whose songs were entirely self-written and self-composed by the members.{{Cite web |last=Park |first=Sang-woo |date=July 15, 2021 |title=온리원오브, 첫 프로듀싱 앨범 'Produced by myself' 발매 |url=https://isplus.com/2021/07/15/enter/entertainment/24106389.html |access-date=December 8, 2022 |website=isplus.com |language=ko |archive-date=August 18, 2023 |archive-url=https://web.archive.org/web/20230818121434/https://isplus.com/article/view/isp202107150245 |url-status=live }}

On August 2, Love withdrew from the group for personal reasons.{{Cite news |author=Park |first=Soo-in |date=August 2, 2021 |title=온리원오브 측 "개인적인 일로 러브 탈퇴 진행중, 일정 재조정"(공식입장 전문) |language=ko |trans-title=OnlyOneOf's side "Love's withdrawal due to personal reasons, rearranging" (official statement) |work=Newsen |publisher=Naver |url=https://entertain.naver.com/now/read?oid=609&aid=0000474773 |access-date=August 2, 2021 |archive-date=November 18, 2022 |archive-url=https://web.archive.org/web/20221118082611/https://entertain.naver.com/now/read?oid=609&aid=0000474773 |url-status=live }}

On September 10, the group unexpectedly released the single album Unknown Ballad 2.3, containing the song "Mono" written and composed by Nine.{{Cite web |last=Chu |first=Seung-hyun |date=September 10, 2021 |title=온리원오브 오늘(10일) 신곡 기습 발표…타이틀곡 'mOnO' 나인 작사·작곡 |url=https://www.sedaily.com/NewsView/22RETXJJH3/GL0301 |access-date=December 8, 2022 |language=ko |archive-date=August 18, 2023 |archive-url=https://web.archive.org/web/20230818121434/https://www.sedaily.com/NewsView/22RETXJJH3/GL0301 |url-status=live }}{{Cite web |last=Kim |first=Soo-jung |date=September 10, 2021 |title=6인조 된 온리원오브, 신곡 '모노' 오늘 깜짝 발매 |url=https://www.nocutnews.co.kr/news/5623076 |access-date=December 8, 2022 |website=No Cut News |language=ko |archive-date=August 18, 2023 |archive-url=https://web.archive.org/web/20230818121435/https://www.nocutnews.co.kr/news/5623076 |url-status=live }} Another single album, WarmWinterWishes, was released on December 23.{{Cite web |last=Yoo |first=Byung-cheol |date=December 30, 2021 |title=온리원오브 유정 인스팅트 파트 2 티저 이미지 공개꽃미남 미모 설렘 자극 |url=https://www.wowtv.co.kr/NewsCenter/News/Read?articleId=A202112300018 |access-date=December 8, 2022 |website=www.wowtv.co.kr |language=ko |archive-date=August 18, 2023 |archive-url=https://web.archive.org/web/20230818121435/https://www.wowtv.co.kr/NewsCenter/News/Read?articleId=A202112300018 |url-status=live }}{{Cite web |last=Lee |first=Gun-bong |date=December 27, 2021 |title=온리원오브 리에, '인스팅트 파트 2' 티저 이미지 공개..로맨틱 분위기 |url=http://www.tvj.co.kr/news/articleView.html?idxno=68223 |access-date=December 8, 2022 |language=ko |archive-date=January 8, 2023 |archive-url=https://web.archive.org/web/20230108214535/http://www.tvj.co.kr/news/articleView.html?idxno=68223 |url-status=live }}

On January 12, 2022, OnlyOneOf made their Japanese debut with the compilation album OnlyOneOf Japan Best Album, which comprises the Japanese version of "Angel" and the hybrid Korean-Japanese versions of five previous released songs.{{Cite web |title= |script-title=ja:OnlyOneOf 日本限定ベストアルバムを発売！クリスマスにビデオ通話特典会の開催決定！ |url=https://onlyoneofofficial.jp/contents/475333 |access-date=December 22, 2021 |website=OnlyOneOf Japan Official |language=ja |archive-date=November 13, 2022 |archive-url=https://web.archive.org/web/20221113065906/https://onlyoneofofficial.jp/contents/475333 |url-status=live }}{{Cite web |title=OnlyOneOf、日本限定ベストアルバム発売決定 クリスマスにビデオ通話特典会も開催 |date=November 26, 2021 |url=https://realsound.jp/2021/11/post-912129.html |access-date=December 8, 2022 |language=ja |archive-date=December 3, 2021 |archive-url=https://web.archive.org/web/20211203135432/https://realsound.jp/2021/11/post-912129.html |url-status=live }}{{Cite web |date=November 26, 2021 |title=OnlyOneOf、日本限定ベストアルバム発売決定 |url=https://www.barks.jp/news/?id=1000211490 |access-date=December 8, 2022 |language=ja |archive-date=October 25, 2022 |archive-url=https://web.archive.org/web/20221025064440/https://www.barks.jp/news/?id=1000211490 |url-status=live }}

On January 14, the group released its fourth extended play Instinct Part. 2 with the title track "Skinz", which stresses the importance of individuality and being yourself.{{Cite web |last=Chakraborty |first=Riddhi |date=January 14, 2022 |title=Watch OnlyOneOf's Provocative and Elegant Video for 'Skinz' |url=https://rollingstoneindia.com/watch-onlyoneofs-provocative-and-elegant-video-for-skinz/ |access-date=December 8, 2022 |website=Rolling Stone India |language=en-US |archive-date=May 20, 2022 |archive-url=https://web.archive.org/web/20220520094450/https://rollingstoneindia.com/watch-onlyoneofs-provocative-and-elegant-video-for-skinz/ |url-status=live }} On May 2, they held the OnlyOneOf Japan Live 2022 at the Zepp DiverCity Tokyo, their first performance in Japan, in front of 3,000 people;{{Cite web |date=March 25, 2022 |title=K-POPボーイズグループOnlyOneOf 日本デビュー決定！5/2 Zepp DiverCityTOKYOにてデビューライブ開催！ |url=https://prtimes.jp/main/html/rd/p/000000905.000022498.html |access-date=December 8, 2022 |language=ja |archive-date=May 13, 2022 |archive-url=https://web.archive.org/web/20220513062800/https://prtimes.jp/main/html/rd/p/000000905.000022498.html |url-status=live }}{{Cite web |date=August 26, 2022 |title=OnlyOneOf 日本2ndライブツアー『OnlyOneOf 2nd Japan live 2022』の開催が決定 |url=https://dareae.info/archives/onlyoneof-2nd-japan-live-2022-info |access-date=December 8, 2022 |language=ja |archive-date=February 7, 2023 |archive-url=https://web.archive.org/web/20230207205619/https://dareae.info/archives/onlyoneof-2nd-japan-live-2022-info |url-status=live }} it was followed by the release of the Japanese single album Suit Dance (Japanese ver.) on May 18,{{cite web |author=Son |first=Jin-ah |date=May 18, 2022 |title=온리원오브, 日 데뷔 앨범 '슈트 댄스' 발매…선공개 음원 차트인 |trans-title=OnlyOneOf, Japanese debut album 'Suit Dance' is released... pre-release music chart |url=https://entertain.naver.com/now/read?oid=410&aid=0000868521 |access-date=May 18, 2022 |publisher=MK Sports |language=ko |via=Naver |archive-date=November 18, 2022 |archive-url=https://web.archive.org/web/20221118082621/https://entertain.naver.com/now/read?oid=410&aid=0000868521 |url-status=live }} which ranked fifth on the Oricon Weekly Singles Chart.

In the second half of the year the members embarked in the Underground Idol project, which saw them release a solo song each every month, accompanied by an "art pop" remix of one of the group's songs.{{Cite web |last=Jang |first=Woo-young |date=May 28, 2022 |title=온리원오브 유정, 파격 금발 변신…'언더그라운드 아이돌' 프로젝트 첫 이미지 |url=https://n.news.naver.com/entertain/article/109/0004624609 |access-date=December 8, 2022 |website=n.news.naver.com |language=ko |archive-date=November 18, 2022 |archive-url=https://web.archive.org/web/20221118082614/https://n.news.naver.com/entertain/article/109/0004624609 |url-status=live }} The first member was Yoojung, who released "Begin" and its music video on June 27.{{Cite web |last=Jo |first=Hye-jin |date=June 27, 2022 |title=온리원오브 유정, 편견 허무는 음악…'언더그라운드 아이돌 #1' 오늘(27일) 발매 |url=https://www.xportsnews.com/article/1595801 |access-date=December 8, 2022 |language=ko |archive-date=August 18, 2023 |archive-url=https://web.archive.org/web/20230818121437/https://www.xportsnews.com/article/1595801 |url-status=live }} He was followed by KB with "Be Free" on July 27,{{Cite web |last=Kim |first=Joo-hee |date=July 20, 2022 |title=온리원오브 규빈, '언더그라운드 아이돌' 두 번째 주자 |url=https://www.newsis.com/view/?id=NISX20220720_0001949677 |access-date=December 8, 2022 |language=ko}} and Junji with "Be Mine" on August 25.{{Cite web |last=Choi |first=Gyu-choon |date=August 25, 2022 |title=온리원오브 준지, 작곡 참여 신곡 '비 마인'으로 특별한 세계 그린다 |url=https://www.metroseoul.co.kr/article/20220825500134 |access-date=December 8, 2022 |website=www.metroseoul.co.kr |language=ko |archive-date=August 30, 2022 |archive-url=https://web.archive.org/web/20220830235817/https://www.metroseoul.co.kr/article/20220825500134 |url-status=live }}{{Cite web |last=Yong |first=Won-joong |date=August 19, 2022 |title=온리원오브 준지, '비 마인' 뮤비 티저 공개…리에와 '애틋 브로맨스' |url=http://www.slist.kr/news/articleView.html?idxno=377778 |access-date=December 8, 2022 |language=ko |archive-date=August 18, 2023 |archive-url=https://web.archive.org/web/20230818121937/http://www.slist.kr/news/articleView.html?idxno=377778 |url-status=live }} In the meantime, they performed at the 2022 G-Kpop Concert on July 15.{{Cite web |last=Hong |first=Sung-hoon |date=June 27, 2022 |title=하이라이트→미래소년, '2022 G-KPOP 콘서트' 호화 라인업 |url=https://www.mk.co.kr/star/musics/view/2022/06/562445/ |access-date=December 8, 2022 |language=ko |archive-date=August 18, 2023 |archive-url=https://web.archive.org/web/20230818121942/https://www.mk.co.kr/star/musics/view/2022/06/562445/ |url-status=live }}

After a pause for the group's second Japanese single album Cunning Woman (ズルい女) – a remake of the 1995 song by Sharam Q – and a three-stop tour in Japan at the beginning of October for the OnlyOneOf 2nd Japan Live 2022,{{Cite web |date=September 26, 2022 |title=つんく♂も絶賛 OnlyOneOf「ズルい女」の大胆な解釈「J-POPとK-POPの融合目指す」 |url=https://www.oricon.co.jp/news/2250154/full/ |access-date=December 8, 2022 |language=ja |archive-date=November 10, 2022 |archive-url=https://web.archive.org/web/20221110114400/https://www.oricon.co.jp/news/2250154/full/ |url-status=live }} the Underground Idol project continued: on October 27, Rie released "Because",{{Cite web |last=Lee |first=Joon-soo |date=October 18, 2022 |title=온리원오브 리에, 콘셉트 포토 공개... 그윽한 눈빛 |url=https://www.etnews.com/20221018000075?SNS=00002 |access-date=December 8, 2022 |language=ko |archive-date=August 18, 2023 |archive-url=https://web.archive.org/web/20230818121944/https://www.etnews.com/20221018000075?SNS=00002 |url-status=live }} followed by Mill on November 28 with "Beat".{{Cite web |last=Anderson |first=Daniel |date=December 3, 2022 |title=K-pop Weekly: BTS's RM releases solo, KARA makes 15th anniversary comeback, fourth gen wins big awards |url=https://news.yahoo.com/k-pop-weekly-bts-rm-004545861.html |access-date=December 8, 2022 |website=news.yahoo.com |language=en-US |archive-date=December 11, 2022 |archive-url=https://web.archive.org/web/20221211162119/https://news.yahoo.com/k-pop-weekly-bts-rm-004545861.html |url-status=live }}{{Cite web |last=Kang |first=Mi-kyung |date=November 28, 2022 |title=온리원오브 밀, 나인과의 특별 브로맨스…'비트' 음원+MV 공개 |url=https://www.etnews.com/20221128000018?SNS=00002 |access-date=December 8, 2022 |language=ko}} On November 11, it was announced that OnlyOneOf had all been cast in the gay webseries Bump Up Business.{{Cite web |last=Park |first=Se-yeon |date=November 11, 2022 |title=온리원오브, 웹드라마 '범프 업 비즈니스' 캐스팅 |url=https://www.mk.co.kr/star/musics/view/2022/11/1008572/ |access-date=December 8, 2022 |language=ko |archive-date=August 18, 2023 |archive-url=https://web.archive.org/web/20230818121944/https://www.mk.co.kr/star/musics/view/2022/11/1008572/ |url-status=live }}

On January 4, 2023, the Underground Idol project ended with Nine's release, the single "Beyond".{{Cite web |last=Hong |first=Eun-hye |date=January 4, 2023 |title=온리원오브 나인, 밀과 특별 브로맨스…오늘(4일) '비욘드' 공개 |url=https://www.etnews.com/20230104000064?SNS=00002 |access-date=January 6, 2023 |language=ko |archive-date=January 6, 2023 |archive-url=https://web.archive.org/web/20230106154801/https://www.etnews.com/20230104000064?SNS=00002 |url-status=live }} Overall, the project was appreciated for showcasing OnlyOneOf's abilities in singing, composition, arrangement, and acting.{{Cite web |last=Han |first=A-jin |date=January 6, 2023 |title='용기 있는 사랑'…온리원오브 '언더그라운드 아이돌', 신선 충격 선사 |url=https://n.news.naver.com/entertain/article/014/0004952274 |access-date=January 6, 2023 |website=n.news.naver.com |language=ko |archive-date=January 6, 2023 |archive-url=https://web.archive.org/web/20230106052722/https://n.news.naver.com/entertain/article/014/0004952274 |url-status=live }}

On March 2, 2023, OnlyOneOf released their first Korean extended play as a group after one year, Seoul Collection.{{Cite web |last=Hong |first=Do-yeon |date=March 2, 2023 |title=온리원오브, 감각적 음악色 빛낸다…새 앨범 '서울 컬렉션' 발매 |url=https://n.news.naver.com/entertain/article/014/0004976243 |access-date=March 3, 2023 |website=n.news.naver.com |language=ko |archive-date=March 7, 2023 |archive-url=https://web.archive.org/web/20230307002902/https://n.news.naver.com/entertain/article/014/0004976243 |url-status=live }} The album tells the stories of young people hurt by others wandering in Seoul; Nine and KB participated in writing, composing and arranging the seven songs.

The group embarked on the OnlyOneOf Grand America Tour on March 29.{{Cite web |last=Moon |first=Ye-bin |date=March 27, 2023 |title=온리원오브 첫 단독 콘서트 '서울 컬렉션' 오는 5월 개최 |url=https://v.daum.net/v/20230327093036691 |access-date=May 3, 2023 |language=ko |archive-date=May 3, 2023 |archive-url=https://web.archive.org/web/20230503163751/https://v.daum.net/v/20230327093036691 |url-status=live }} Of the 16 stops, seven sold out as soon as ticketing opened at the beginning of January 2023.{{Cite web |last=Im |first=Nam-kyung |date=January 11, 2023 |title=온리원오브, 미주 투어 진행→VVIP 티켓 오픈과 동시에 매진 |url=https://n.news.naver.com/entertain/article/057/0001715197 |access-date=February 4, 2023 |language=ko |archive-date=February 4, 2023 |archive-url=https://web.archive.org/web/20230204153810/https://n.news.naver.com/entertain/article/057/0001715197 |url-status=live }} The tour ended on April 30, followed by OnlyOneOf's first Korean concerts on May 27 and 28.{{Cite web |last=Ahn |first=Byung-gil |date=May 1, 2023 |title=온리원오브, 미주 16곳 홀려···국내 단콘 연다 |url=https://v.daum.net/v/20230501130158312 |access-date=2023-05-03 |language=ko |archive-date=2023-05-03 |archive-url=https://web.archive.org/web/20230503163751/https://v.daum.net/v/20230501130158312 |url-status=live }}{{Cite web |last=Lee |first=Eun-mi |date=May 30, 2023 |title=온리원오브, 미주 투어→국내 단콘 '서울 컬렉션'까지…'소통 활동' 성료 |url=https://www.dailysportshankook.co.kr/news/articleView.html?idxno=304986 |access-date=June 7, 2023 |language=ko |archive-date=June 7, 2023 |archive-url=https://web.archive.org/web/20230607040225/https://www.dailysportshankook.co.kr/news/articleView.html?idxno=304986 |url-status=live }}

On December 14, 2023, they announced their comeback with their sixth mini album, Things I Can't Say Love, released on January 10, 2024.{{Cite web |last=Park |first=Sung-jin |date=2024-01-10 |title=온리원오브, 'dOpamine'으로 돌아온다…'빛나는 서사' 예고 |url=https://www.etnews.com/20240110000118?SNS=00002 |access-date=2024-01-10 |language=ko}} On March 9–10 they performed at Sungshin University in Seoul, kicking of the OnlyOneOf 2024 dOpamine World Tour.{{Cite web |last=Lee |first=Eun-mi |date=2024-03-11 |title=온리원오브와의 특별한 시간…'도파민 인 서울' 성황리 마무리 |url=https://www.dailysportshankook.co.kr/news/articleView.html?idxno=322636 |access-date=2024-03-17 |language=ko}} The tour continued in Latin America, North America, Southeast Asia, Oceania and Europe until the summer.{{Cite web |date=2024-02-14 |title=OnlyOneOf releases more ticket details ahead of upcoming world tour |url=https://koreajoongangdaily.joins.com/news/2024-02-14/entertainment/kpop/OnlyOneOf-releases-more-ticket-details-ahead-of-upcoming-world-tour/1980762 |access-date=2024-03-17 |website=koreajoongangdaily.joins.com |language=en}}{{Cite web |last=Yong |first=Won-joong |date=2024-05-13 |title=온리원오브, 미주투어→유럽-亞-호주 공연 ing '광폭 행보' |url=https://www.slist.kr/news/articleView.html?idxno=548228 |access-date=2024-05-27 |language=ko}}{{Cite web |last=Kang |first=Da-yoon |date=2024-07-25 |title=온리원오브, 월드투어 성료…아시아-미주-유럽-호주 33개 도시 순회 |url=https://m.entertain.naver.com/article/117/0003855024 |access-date=2024-08-18 |language=ko}}

• KB ({{lang|ko|규빈}})
• Rie ({{lang|ko|리에}})
• Yoojung ({{lang|ko|유정}})
• Junji ({{lang|ko|준지}})
• Mill ({{lang|ko|밀}})
• Nine ({{lang|ko|나인}})

• Love ({{lang|ko|러브}}) (2019–2021)

{{Reflist}}

{{commons category|OnlyOneOf}}

• {{official website|http://8denter.com/onlyoneof/}}

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Category:K-pop music groups

Category:South Korean boy bands

Category:South Korean dance music groups

Category:Musical groups from Seoul

Category:Musical groups established in 2019

Category:2019 establishments in South Korea

Category:South Korean pop music groups