Produced By
Clevie
Mark "Spike" Stent
Nellee Hooper
No Doubt
Philip Steir
Sly & Robbie
Steely
Wayne Jobson (executive)
William Orbit

Featuring
Andy Potts on saxophone
Bounty Killer
Cindy Cooper on package coordinator
Django Stewart on saxophone
Ekaterina Kenney on package coordinator
Gabrial McNair on trombone, keyboards, clavinet
Gwen Stefani on vocals
Lady Saw
Robbie Shakespeare on bass
Tom Dumont on guitar, keyboards
Tony Kanal on guitar (bass), saxophone, keyboards

Engineered By
Alain Johannes
Anthony Kilhoffer (assistant)
Daniel Chase
Greg Collins
Hans Buff
Ian Rossiter (assistant)
Jeff Kanan (assistant)
Jennifer Young (assistant)
Juan Pablo Velasco (assistant)
Karl Derfler
Rory Baker
Simon Gogerly
Steve Mandel (assistant)
The Count
Tkae Mendez
Tom Dumont
Tony Kanal

Featuring
Adrian Young on percussion, drums
Bryan Carrigan on synthesizer programming
Chris Fenn on personal assistant
Cindy Cooper on package coordinator
Gabrial McNair on synthesizer, trombone, synthesizer programming, horn arrangements, keyboards, piano
Gwen Stefani on vocals
Michael Boddicker on synthesizer programming
Mike Garson on piano
Paul Buckmaster on string arrangements
Rachel Cleverley on production assistant
Ray Ibe on web service
Stephen Bradley on trombone, keyboards, trumpet
Theo Mondle on tabla
Tom Dumont on guitar
Tony Kanal on bass, guitar (bass)

Featuring
Adrian Young on percussion, drums
Aloke Dasgupta on sitar
Bill Bergman on saxophone
Eric Stefani on piano, keyboards
Gabrial McNair on percussion, trombone
Greg Smith on sax (baritone)
Gwen Stefani on vocals
Les Lovitt on trumpet
Matthew Wilder on keyboards
Melissa "Missy" Hasin on cello
Nick Lane on trombone
Stephen Perkins on drums (steel), ?
Tom Dumont on guitar
Tony Kanal on bass

Featuring
Adrian Young on percussion, drums
Albhy Galuten on advisor
Bradley on vocals
Eric Carpenter on saxophone
Eric Stefani on keyboards
Gabrial McNair on percussion, trombone
Gwen Stefani on vocals
Phil Jordan on trumpet
Tom Dumont on guitar
Tony Kanal on bass

Featuring
Adrian Young on percussion, drums
Alex Henderson on trombone
Don Hammerstedt on trumpet, horn arrangements
Eric Carpenter on saxophone
Eric Stefani on keyboards, vocals
Gwen Stefani on vocals
Tom Dumont on guitar
Tony Kanal on bass