12,スマート
高橋愛:Chorus (#1 - #3, #5 - #12)
新垣里沙:Chorus (#1, #6)
道重さゆみ:Chorus (#4)
つんく♂:Chorus (#5, #12)
大久保薫:Keyboard (#1 - #4, #8, #11), Programming (#1 - #4, #8, #11)
鎌田こーじ:Guitar (#2, #7, #8, #12), E. Guitar (#5), A. Guitar (#5)
U.M.E.D.Y.:Rap (#3)
平田祥一郎:Programming (#5, #7)
AKIRA:Programming (#6)
鈴木俊介:Programming (#9), Guitar (#9)
高尾俊行:Drum (#9)
板垣祐介:Programming (#10), Guitar (#10)
宅見将典:Programming (#12), Guitar (#12), Bass (#12)