Proof/No Vain
{{Infobox song
| name = Proof/No Vain
| cover = Proof_no_vain.jpg
| alt =
| type = single
| artist = Mell
| album =
| released = May 30, 2007
| recorded = 2007
| studio =
| venue =
| genre = J-Pop
| length = 23:06
| label = Geneon
| writer = Mell, Kazuya Takase (both songs)
| producer = I've Sound
| prev_title = Red Fraction
| prev_year = 2006
| next_title = Virgin's High!/Kicks!
| next_year = 2007
}}
"Proof/No Vain" is Mell's second single under Geneon Entertainment. "Proof" was used as the first ending theme for the anime series Hayate no Gotoku!. The single reached number 18 in the Oricon charts and sold a total of 13,000 copies.{{cite web | title = MELL-リリース-ORICON STYLE ミュージック | url = http://www.oricon.co.jp/music/release/d/708238/1/ | accessdate = 2007-12-14 | language = Japanese}}
Track listing
{{track listing
| headline =
| total_length = 23:04
| title1 = Proof
| lyrics1 = Mell
| music1 = Kazuya Takase
| length1 = 5:33
| title2 = no vain
| lyrics2 = Mell
| music2 = Kazuya Takase
| length2 = 6:00
| title3 = Proof -Instrumental-
| length3 = 5:33
| title4 = no vain -Instrumental-
| length4 = 5:58
}}
References
{{Reflist}}
{{Mell}}
{{Authority control}}
{{DEFAULTSORT:Proof No Vain}}
Category:Hayate the Combat Butler songs
Category:Song recordings produced by I've Sound
{{2000s-Japan-single-stub}}