Avant: Guitar, Bass, Programming, Producer, Keyboards, Mixing, Recording
Harvey Mason Jr.: Producer, Mixing
Guy Sigsworth: Producer, Drum Programming, Keyboards, String Samples, Samples
Andy Page: Drum Programming, Electric Guitar, Acoustic Guitar, Synthesizer, Mixing, Piano, Sampled Strings, Recording, Synth Bass
Laura Duncan: Wardrobe
Luke Boyd: Backing Vocals
Tony Maserati: Mixing
Serban Ghenea: Mixing
Debi Nova: Backing Vocals
Cathy Dennis: Backing Vocals
Benny Blanco: Drums, Programming, Producer, Keyboards, Co-Producer
Ron Taylor: Pro Tools Editing
Bloodshy: Guitar, Bass, Programming, Producer, Keyboards, Mixing, Recording
Dr. Luke: Guitar, Drums, Programming, Producer, Keyboards
John Hanes: Pro Tools
Kasia Livingston: Backing Vocals
Max Martin: Programming, Producer, Backing Vocals
Nicole Morier: Vocal Producer, Backing Vocals
Niklas Flyckt: Mixing
Andrew Wyatt: Recording
Let's Go To War: Producer
Jeri Heiden: Design, Art Direction
Tom Coyne: Mastering
Dabling Harward: Recording
Aniela Gottwald: Recording Assistant
Candice Nelson: Backing Vocals
Jackie Murphy: Art Direction
Jim Beanz: Vocal Producer, Additional Recording
Marcella "Ms. Lago" Araica: Mixing, Recording, Additional Recording
Tim Roberts: Assistant Pro-Tools Engineer
Chris McMillan: Hair Stylist
Henrik Jonback: Guitar, Bass, Recording, Additional Guitar
Seth Waldmann: Recording
Windy Wagner: Backing Vocals
David Boyd: Additional Recording
Kate Turning: Photography
Eric Weaver: Recording Assistant, Additional Recording
Brendan Dekora: Mixing Assistant, Recording Assistant, Recording
Larry Rudolph: Executive Producer, Management
Emily Wright: Vocal Editing, Recording
Chris Kasych: Recording Assistant
Claude Kelly: Vocal Producer, Backing Vocals
Rob Knox: Producer
Andrew Hey: Recording
Leah Haywood: Backing Vocals
Eric Eylands: Recording Assistant
Shellback: Programming
Tatiana Gottwald: Recording Assistant
Sam Holland: Recording
Anders Hvenare: Mixing
Jared Newcomb: Mixing Assistant, Recording Assistant
Danja : Producer
Teresa LaBarbera Whites: Executive Producer, A & R Executive
Chad Carlisle: Recording Assistant
Derik Lee: Recording Assistant
Angela N. Golightly: Production Coordination
Myah Marie: Backing Vocals
Matt Beckly: Recording
Bojan "Genius" Dugic: Recording
Kinnda : Backing Vocals
Henry Walter: Recording
Chris Worthy: Guitar
David "Touch" Wright: Production Coordination
Kesha Sebert: Backing Vocals
The Clutch : Co-Producer
Jim Carauna: Additional Recording
All Sets: Set Design
Anna Schoenberger: Prop Design
Steven Jacobi: Production Photography
Pati Dubroff: Make-Up