Credits

No Doubt: Producer, Liner Notes, Mixing
Gwen Stefani: Design, Vocals
Tony Kanal: Bass
Bradley: Vocals
Robert Vosgien: Mastering
Adrian Young: Drums, Percussion, Mixing, Mixing Assistant
Albhy Galuten: Advisor
Ray Blair: Engineer
Scott Ralston: Mixing, Mixing Assistant
Tom Dumont: Guitar, Engineer, Mixing
Phil Jordan: Trumpet
Colin Mitchell: Engineer, Mixing
Eric Carpenter: Saxophone
Eric Stefani: Keyboards
Gabrial McNair: Percussion, Trombone
Matt Wignall: Layout Design
Nicholas Hexum: Mixing, Mixing Assistant