Credit

• Art Direction, Layout - Jolie Clemens
• Engineer [2nd Assistant] - Rob Haggett (1, 4, 6 to 11)
• Engineer [Assistant] - David Treahearn (1, 4, 6 to 11)
• Engineer [Assistant] - Ian Rossiter (6, 9, 11)
• Engineer [Assistant] - Jaime Sickora (2, 5, 12)
• Engineer [Assistant] - Kevin Mills (1, 4 to 6, 9, 11, 12)
• Illustration [Illustrations] - Shinjuko
• Illustration [Logo / Border / Type Illustrations] - John Copeland (4)
• Keyboards - Lee Groves (8 to 10)
• Mastered By - Brian "Big Bass" Gardner
• Mixed By - Mark "Spike" Stent
• Photography By - Nick Knight
• Producer - Nellee Hooper (1, 6, 9, 11, 13)
• Producer - Tony Kanal (6, 8, 10)
• Producer [Additional] - Mark "Spike" Stent
• Programmed By - Jason Lader (4, 6, 9, 11)
• Programmed By [Mix Programming] - Lee Groves (6, 8 to 10)
• Programmed By, Keyboards, Synthesizer - Tony Kanal (6, 8, 10)
• Recorded By - Colin "Dog" Mitchell
• Recorded By - Greg Collins (1, 2, 4, 6, 9, 11, 13)
• Recorded By - Simon Gogerly (6, 9, 11)
• Written-By - G. Stefani
• Written-By - L. Perry
• Written-By - T. Kanal
• Art Direction, Layout - Jolie Clemens
• Artwork [Creative Direction] - Gwen Stefani
• Artwork [Logo, Border & Type Illustrations] - John Copeland (4)
• Coordinator [Art Coordination] - Nicole Frantz
• Coordinator [Illustration Coordination] - Tomoe Ohnishi
• Coordinator [Packaging Coordination] - Cindy Cooper (2)
• Engineer [Assistant] - Brad Winslow (2)
• Engineer [Assistant] - Ceaser Guevara
• Engineer [Assistant] - Doug Harms (4, 11)
• Engineer [Assistant] - Francis Forde (2)
• Engineer [Assistant] - Glen Pittman (5)
• Engineer [Assistant] - Ian Rossiter (6, 9, 11)
• Engineer [Assistant] - Jaime Sickora (2)
• Engineer [Assistant] - Jason Finkel (3)
• Engineer [Assistant] - John Warren (4) (5)
• Engineer [Assistant] - Kevin Mills (1, 4, 6, 9, 11)
• Engineer [Assistant] - Nick Ferrero (5, 12)
• Engineer [Assistant] - Paul Sheehy (4)
• Engineer [Assistant] - Sean Tallman (5, 12)
• Engineer [Assistant] - Warren Bletcher (5, 12)
• Engineer [Mix, 2nd Assistant] - Rob Haggett (1, 4, 6 to 11)
• Engineer [Mix, Assistant] - David Treahearn (1, 4, 6 to 11)
• Engineer [Mix, Assistant] - Glenn Pittman
• Engineer [Mix, Assistant] - Jaime Sickora (5, 12)
• Engineer [Mix, Assistant] - Kevin Mills (5, 12)
• Engineer [Mix, Assistant] - Rouble Kapoor (2)
• Illustration - Shinjuko
• Mastered By - Brian "Big Bass" Gardner
• Mixed By - Andre 3000 (12)
• Mixed By - Dr. Dre (2)
• Mixed By - Greg Collins (5, 12)
• Mixed By - Johnny Vulture (5)
• Mixed By - Mark "Spike" Stent
• Mixed By - Phil Tan (3)
• Photography By - Nick Knight
• Photography By - Nicole Frantz
• Recorded By - Andrew Coleman (3) (3)
• Recorded By - Colin "Dog" Mitchell
• Recorded By - Greg Collins (1, 2, 4, 6, 9, 11, 13)
• Recorded By - Ian Cross (7)
• Recorded By - Ian Rossiter (1)
• Recorded By - John Frye (5, 12)
• Recorded By - Matt Marrin (7)
• Recorded By - Mauricio "Veto" Iragorri (2)
• Recorded By - Pete Novak (5, 12)
• Recorded By - Rick Sheppard (4, 11)
• Recorded By - Simon Gogerly (6, 9, 11)
• Written-By - G. Stefani