Composer: Cathy Dennis
Lyricist: Cathy Dennis
Composer: Dejvid Safar
Lyricist: Dobry Lavr
Composer: Catherine Dennis & Łukasz Gottwald & Katy Perry & Max Martin
Lyricist: Catherine Dennis & Łukasz Gottwald & Katy Perry & Max Martin
Composer: Peter Anderson
Lyricist: Peter Anderson