Birthday/君と重ねたモノローグ
Mr.Children 桜井和寿:Vocals (#1, #2), Acoustic Guitar (#1) 田原健一:Electric Guitars (#1, #2) 中川敬輔:Bass (#1, #2) 鈴木英哉:Drums (#1, #2), Percussion (#1, #2)
Joby Burgess:Timpani (#1)
Darren Heelis:Additional Drum Programming (#1, #2)
Steve Fitzmaurice:Additional Drum Programming (#1)
Henry Bowers-Broadbent:Rhodes (#2), Hammond (#2)
Everton Nelson:String Leader (#1, #2)