Producer: Julian Bunetta - Artist: Niall Horan - Producer: Tobias Jesso Jr. - Mixer: Mark "Spike" Stent - Assistant Mixer: Matt Wolach - Assistant Mixer: Michael Freeman - Background Vocalist: Niall Horan - Guitar: Niall Horan - Vocals: Niall Horan - Drums: Aaron Sterling - Percussion: Aaron Sterling - Background Vocalist: Julian Bunetta - Drums: Julian Bunetta - Guitar: Julian Bunetta - Keyboards: Julian Bunetta - Programming: Julian Bunetta - Guitar: Nate Mercereau - A&R Admin: Elizabeth Isik - A&R: Erynn Hill - Engineer: Jeff 'Da Badass' Gunnell - Asst. Recording Engineer: Jesse Munsat - Mastering Engineer: Chris Gehringer - Assistant Mastering Engineer: Will Quinell - Composer/Author: Niall Horan