- Christina Aguilera – executive producer, writer, composer, piano
- Ron Fair – executive producer, A&R
- Scott Storch – producer, writer, composer
- Linda Perry – producer, writer, composer, engineer
- Rob Hoffman – producer, writer, composer
- Heather Holley – producer, writer, composer
- Steve Morales – producer, writer, composer,
- Alicia Keys – producer, writer, composer
- Glen Ballard – producer, writer, composer
- Rockwilder – producer
- Jasper Cameron – writer, composer
- Balewa Muhammad – writer, composer
- R. Noble – writer, composer
- David Siegel – writer, composer,
- D. Stinson – writer, composer
- Matt Morris – writer
- Tony Black – recording
- Oscar Ramirez – recording
- Wassim Zreik – recording
- Shane Stoner – recording
- David Guerrero – engineer, assistant mix engineer
- Dylan Dresdow – engineer, mix engineer
- Andrew Chavez – assistant engineer, assistant mix engineer
- Davy Vain – assistant engineer, pro tools engineer
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- Brian Douglas – assistant engineer
- Alex Gibson – assistant engineer
- Jay Goin – assistant engineer
- Mark Kizula – assistant engineer
- Aaron Leply – assistant engineer
- John Morichal – assistant engineer
- Rafael Serrano – assistant engineer
- Kevin Szymanski – assistant engineer
- Scott Whitting – assistant engineer
- Tony Maserati – mixing
- Peter Mokran – mixing
- Dave Pensado – mixing
- Rich Balmer – assistant mix engineer
- Tony Flores – assistant mix engineer
- Anthony Kilhoffer – assistant mix engineer
- Jamie Sickora – assistant mix engineer
- Ethan Willoughby – assistant mix engineer
- Jolie Levine-Aller – production coordinator
- Stephanie Kubiak – production assistant
- Joann Tominaga – music contractor
- Brian Gardner – mastering
- Jeri Heiden – art direction & design
- Glen Nakasako – art direction & design
- Miranda Penn Turin – photography
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