- David Boyd – engineer
- Greg Kurstin – composer, programming, producer, wngineer
- Shelly Peiken – composer
- Guy Sigsworth – composer, producer, drum programming
- Stefani Germanotta – composer
- Ron Taylor – digital editing
- Tom Coyne – mastering
- Max Martin – composer, programming, producer
- Harvey Mason Jr. – composer, producer
- Britney Spears – composer
- Andrew Hey – engineer
- Andrew Wyatt – engineer
- Balewa Muhammad – composer
- Emily Wright – engineer, vocal editing
- Wayne Hector – composer
- Andy Page – engineer, drum programming
- Eric Weaver – engineer
- Arnthor Birgisson – composer
- Dabling Harward – engineer
- Nicole Morier – composer, vocal producer
- Henrik Jonback – composer, engineer
- Teresa LaBarbera Whites – executive producer
- Seth Waldmann – engineer
- Larry Rudolph – executive producer, video producer
- Ezekiel Lewis – composer
- Lukasz "Dr. Luke" Gottwald – composer, programming
- Alexander Kronlund – composer
- Kasia Livingston – composer
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- Nathaniel "Danjahandz" Hills – composer
- Candice Nelson – composer
- James Fauntleroy – composer
- Claude Kelly – composer, vocal producer
- Marcella "Ms. Lago" Araica – composer, engineer
- Jim Beanz – engineer, vocal producer
- Frankie Storm – composer
- Luke Boyd – composer
- Rob Knox – composer, producer
- Brendan Dekora – engineer, vocal recording
- Savan Kotecha – composer
- Karl Schuster – composer
- Nikesha Briscoe – composer
- Pontus Winnberg – composer
- Stacy Barthe – composer
- Adrien Gough – composer
- Peter John-Kerr – composer
- Jim Carauna – composer
- Ronnie Jackson – composer
- Rafael Akinyemi – composer
- Ezekial Lewis – composer
- James Washington – composer
- Henry Walter – composer
- Christian Karlsson – composer
- Benjamin Levin – composer
- Patrick Smith – composer
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