Artist: 5 Seconds of Summer - Producer: Andrew Watt - Producer: Lou Bell - Producer: Dre Moon - Programmer: Andrew Watt - Programmer: Lou Bell - Programmer: Dre Moon - Guitar: Luke Hemmings - Guitar: Michael Gordon Clifford - Guitar: Andrew Watt - Bass (Vocal): Calum Hood - Drums: Ashton Irwin - Keyboards: Andrew Watt - Vocals: Luke Hemmings - Vocals: Calum Hood - Vocals: Ashton Irwin - Vocals: Michael Gordon Clifford - Vocal Producer: Ali Tamposi - Background Vocalist: Luke Hemmings - Background Vocalist: Calum Hood - Background Vocalist: Ashton Irwin - Background Vocalist: Michael Gordon Clifford - Background Vocalist: Andrew Watt - Background Vocalist: Ali Tamposi - Engineer: Paul LaMalfa - Mixer: Manny Marroquin - Engineer: Chris Galland - Mastering Engineer: Dave Kutch - Composer/Author: Luke Hemmings