Credits

Britney Spears: Executive Producer
Pharrell Williams: Backing Vocals
T-Pain: Arranger
Keri Hilson: Vocal Producer, Backing Vocals
The Neptunes: Producer
Tony Maserati: Mixing
Ron Taylor: Additional Engineer, Additional Edits
Chad Hugo: Mixing
Mango: Additional Programming
Bloodshy & Avant: Guitar, Bass, Programming, Producer, Keyboards, Recording
Kara DioGuardi: Producer, Vocal Producer, Backing Vocals
Niklas Flyckt: Mixing
Freescha: Producer, Multi-Instruments, Recording
Klas Åhlund: Bass
Jeri Heiden: Artist Direction, Design
Tom Coyne: Mastering
"Fredwreck" Farid Nassar: Guitar, Producer, Keyboards
Brian Garten: Recording
Brian Paturalski: Recording
Candice Nelson: Backing Vocals
Hart Gunther: Recording Assistant
Jackie Murphy: Design, Art Direction
Jim Beanz: Vocal Producer, Backing Vocals, Additional Vocals
Marcella "Ms. Lago" Araica: Mixing, Recording, Additional Programming
Miguel Bustamante: Mixing Assistant
Patti Wilson: Stylist
Rob Skipworth: Recording Assistant
Vernon Mungo: Recording
Ezekiel Lewis: Backing Vocals
Francesca Tolot: Make-Up
Glen Nakasako: Design, Art Direction
Henrik Jonback: Guitar, Bass, Additional Guitar
Mike Houge: Mixing Assistant
Nancy Roof: A & R Administration
Ryan Kennedy: Recording Assistant
Theresa LaBarbera Whites: A & R Executive
Windy Wagner: Backing Vocals
Valente : Recording Assistant
Supa Engineer DURO : Mixing
Kobie "The Quarterback" Brown: Legal Clearance
Ellen Von Unworth: Photography
Jenny Price: A & R Coordination
Jeff Monachino: Legal Clearance
Erick Coomes: Guitar, Bass
Richard "Segal" Huredia: Recording
Mark Gray: Recording Assistant
Danja : Producer
Jordan "DJ Swivel" Young: Mixing Assistant, Additional Recording
David Schmidt: Legal Clearance
Devine Evans: Digital Effects, Additional Pro Tools Editing
Kristen Vallow: Prop Stylist
Mike Evans: Production Coordination
The Clutch : Co-Producer
Jim Carauna: Engineer
Robyn Carlsson: Backing Vocals
Mike Snow: Mixing Assistant, Recording Assistant
David M. Erlich: Production Coordination
Corte "The Author" Ellis: Backing Vocals
Sean "The Pen" Garrett: Backing Vocals, Co-Producer
Cara Hutchinson: Production Coordination
Damon "Ellis" Ellis: Legal Clearance
Lisa Jachno: Manicurist