Producer: Nellee Hooper - Artist: No Doubt - Producer: No Doubt - Recording Engineer: Greg Collins - Engineer: Simon Gogerly - Asst. Recording Engineer: Anthony Kilhoffer - Asst. Recording Engineer: Ian Rossiter - Mixer: Mark 'Spike' Stent - Other: Wayne Wilkins - Other: Paul "P-Dub" Walton - Other: Johnny Gould - Mix Engineer: Matt Fields - Mix Engineer: David Treahearn - Mix Engineer: Keith Uddin - Vocals: Gwen Stefani - Bass Guitar: Tony Kanal - Keyboards: Tony Kanal - Guitar: Tom Dumont - Keyboards: Tom Dumont - Drums: Adrian Young - Percussion: Adrian Young - Programming: Fabien Waltmann - Composer/Author: Gwen Stefani

Producer: Nellee Hooper - Artist: No Doubt - Producer: No Doubt - Re-Mixer: Roger Sanchez - Remix Engineer: Doug DeAngelis - Keyboards: Scars - Composer/Author: Gwen Stefani

Producer: No Doubt - Featuring: OutKast - Producer: Sly & Robbie - Featuring: Killer Mike - Additional Producer: Mark 'Spike' Stent - Re-Mixer: ET3 Productions - Composer/Author: Gwen Stefani