Composer: Tor Erik Hermansen & Mikkel Storleer Eriksen & Benjamin Levin & Katy Perry & Sarah Hudson & Amethyst Kelly
Lyricist: Tor Erik Hermansen & Mikkel Storleer Eriksen & Benjamin Levin & Katy Perry & Sarah Hudson & Amethyst Kelly
Composer: Taylor Swift & Shellback & Max Martin
Lyricist: Taylor Swift & Shellback & Max Martin