Produced By
Avril Lavigne (executive)
Butch Walker
Deryck Whibley
Matt Mecley
Rob Cavallo
Steven Wolf

Featuring
Abe Laboriel Jr. on drums
Avril Lavigne on vocals, vocals (background)
Butch Walker on bass, vocals (background), keyboards, guitar, percussion
Chris Chaney on bass
Dan Chace on keyboards
David Campbell on string arrangements
Deryck Whibley on bass, guitar
Greg Suran on guitar
Jamie Muhoberac on piano, keyboards
Josh Freese on drums
Kenny Aronoff on drums
Larry Corbett on cello
Lukasz "Doctor Luke" Gottwald on bass, piano, guitar
Paul Bushnell on bass
Steven Wolf on drums
Stevo on drums
Tim Pierce on guitar
Travis Barker on drums

Engineered By
Aniela Gottwald
Chris Holmes
Chris Soper
Doug McKean
Josh Wilbur
Karl Egsieker
Keith Gretlein
Ken Allardyce
Matt Beckley
Michael Caffery
Nik Karpen (assistant)
Paul David Hager
Rouble Kapoor
Scott E. Moore (assistant)
Scott Gutierrez (assistant)
Seth Waldmann
Tatiana Gottwald
Tom Syrowski
Wesley Seidman

Featuring
Bill Lafler on drums
Brian E. Garcia on percussion
Brooks Wackerman on drums
Butch Walker on guitar (acoustic), bass, percussion, keyboards, vocals (background), guitar (electric), piano
Chantal Kreviazuk on piano, keyboards, string arrangements
Evan Taubenfeld on guitar (acoustic), guitar (electric), drums, vocals (background)
Jason Lader on bass
Josh Freese on drums
Kenny Aronoff on percussion, drumss
Kenny Cresswell on drums
Mark Robertson on violin
Michael Ward on guitar
Mike Elizondo on bass
Patrick Warren on strings, keyboards, chamberlin
Phil X. on guitar
Raine Maida on keyboards, string arrangements
Sam Fisher on violin
Samuel Formicola on violin
Shanti Randall on viola
Static on keyboards
Victor Lawrence on cello

Produced By
Clif Magness
Curt Frasca
L.A. Reid (executive)
Peter Zizzo

Featuring
Alex Elena on drums
Avril Lavigne on guitar, vocals (background)
Clif Magness on bass, guitar, guitar (electric), drums, keyboards, drum loop, sequencing
Corky James on guitar
Curt Frasca on guitar, multi instruments
Gerry Leonard on guitar
Jeff Allen on bass
Joe Bonadio on drums
Josh Freese on drums
Peter Zizzo on guitar
Suzie Katayama on cello

Engineered By
Clif Magness
Curt Frasca
Femio Hernández (assistant)
Jon Berman
Peter Zizzo
Rick Kerr
Tom Hardisty (assistant)