One Spring Day

{{Infobox album

| name = One Spring Day

| type = studio

| artist = 2AM

| cover = 2am one spring day.jpg

| alt =

| caption = Standard Cover

| released = {{Start date|2013|03|05|df=yes}}

| recorded = 2013

| venue =

| studio =

| genre = Pop

| length = {{Duration|m=31|s=45}}

| language = Korean

| label = Big Hit Entertainment

| producer =

| prev_title = Voice

| prev_year = 2013

| next_title = Nocturne

| next_year = 2013

| misc = {{Singles

| name = One Spring Day

| type = studio

| single1 = One Spring Day

| single1date = March 5, 2013

}}

}}

One Spring Day is the second Korean studio album (and third overall) by South Korean boy band 2AM.{{cite web | url = http://www.allkpop.com/2013/02/2am-releases-details-and-tracklist-for-anticipated-return-with-one-spring-day | title = 2AM releases details and tracklist for anticipated return with 'One Spring Day' | publisher = allkpop | date = 2013-02-21}}

For this album, 2AM is planning for a musical transformation. A sneak preview of the song's introduction showcases Lim Seulong′s voice being prominent and different.{{cite web | url = http://enewsworld.mnet.com/enews/contents.asp?idx=28619 | archive-url = https://archive.today/20130411091318/http://enewsworld.mnet.com/enews/contents.asp?idx=28619 | url-status = dead | archive-date = 2013-04-11 | title = A Preview to 2AM′s Upcoming Promotional Single | publisher = enewsworld | date = 2013-02-11 }} The lead track is "One Spring Day", with a slow piano melody, for which a teaser video was released on 27 February 2013.{{cite news|last=Lee|first=Gyeong-Ho|title=2AM release the new song "One Spring Day"|url=http://star.mt.co.kr/stviewEng.php?type=3&no=2013022709065497446|accessdate=13 May 2013|newspaper=Star News|date=27 February 2013|url-status=dead|archiveurl=https://web.archive.org/web/20140321043126/http://star.mt.co.kr/stviewEng.php?type=3&no=2013022709065497446|archivedate=21 March 2014}}