Producer: Glen Ballard - Artist: No Doubt - Recording Engineer: Alain Johannes - Recording Engineer: Scott Campbell - Recording Engineer: Bryan Carrigan - Mixer: Jack Joseph Puig - Vocals: Gwen Stefani - Bass Guitar: Tony Kanal - Keyboards: Tony Kanal - Guitar: Tom Dumont - Keyboards: Tom Dumont - Drums: Adrian Young - Percussion: Adrian Young - Other: Gabrial McNair - Piano: Gabrial McNair - Trombone: Gabrial McNair - Trumpet: Stephen Bradley

Producer: Nellee Hooper - Artist: No Doubt - Producer: No Doubt - Recording Engineer: Karl Derfler - Mixer: Mark 'Spike' Stent - Programming: Stuart Price - Asst. Recording Engineer: Kevin Mills - Vocals: Gwen Stefani - Bass Guitar: Tony Kanal - Guitar: Tom Dumont - Drums: Adrian Young - Keyboards: Gabrial McNair