Producer: Bruno Mars - Artist: Lady Gaga - Artist: Bruno Mars - Producer: Dernst "D'Mile" Emile II - Producer: Lady Gaga - Producer: Andrew Watt - Recording Engineer: Charles Moniz - Mixer: Charles Moniz - Additional Engineer: Ryan Cecil - Mastering Engineer: Greg Koller - Background Vocalist: Phil Lawrence - Trombone: Kameron Whalum - Background Vocalist: Kameron Whalum - Bass: Jamereo Artis - Guitar: Luke Aiono - Keyboards: John Fossitt - Trumpet: James King - Saxophone: Dwayne Dugger - Drums: Eric Hernandez