Credits

Gwen Stefani: Vocals
Paul Leary: Guitar, Producer, Mixing
David Kahne: Producer, Mixing, Organ, Piano
Mike Ragogna: Compilation Producer
Dave Aron: Programming
Marshall Goodman: Drums, Turntables
Erick Labson: Mastering
Stuart Sullivan: Engineer
Chris Hauser: Trumpet
Field Marshall: Percussion, Drum Programming, Turntables
John Dunne: Photography
Vartan : Artwork Direction
Eddie Ashworth: Engineer
Monique McGuffin: Product Manager
Anthony Arvizu: Engineer
Ryan Null: Photo Coordinator
Eric Wilson: Bass, Percussion, Organ, Upright Bass
Donnell Cameron: Engineer
Warren Fitzgerald: Mixing
Brian Wallace: Baritone Saxophone
Bud Gaugh: Drums, Sampling
Duane Hartman: Alto Saxophone
Jack Maness: Guitar, Vocals
Nick Martin: Trombone
Todd Foreman: Saxophone
Blaine Kaplan: Management
Garry Greth: Engineer
Jon Blonell: Trombone
Jonathan Phillips: Management
Bradley Nowell: Guitar, Producer, Hammond Organ, Vocals
Steve McNeil: Mixing