- Erik Alcock – composer, guitar
- Phil Allen – engineer
- Deborah Anderson – photography
- Zachary Baird – keyboards
- Ben West – composer
- Jeff Bhasker – composer, keyboards, producer, programming, synthesizer
- Charlie Bisharat – concert master
- Will Brierre – mixing assistant
- John Brown – additional production
- Busbee – composer
- David Campbell – string arrangements, string conductor
- Lily Rose Cooper – composer, featured artist
- Rich Costey – mixing
- Tom Coyne – mastering
- Nick Cua – tour manager
- Steve Daly – composer
- Dave Schuler – acoustic guitar, arranger, bass, drum programming, engineer, electric guitar, producer
- Roger Davies – management
- DJ Khalil – keyboards, producer
- Andrew Duckles – viola
- Kevin Dukes – guitar
- Eminem – featured artist
- Shady Farshadfar – management
- Veronica Ferraro – mixing
- Lisa Garrett – management
- Serban Ghenea – mixing
- John Hanes – mixing engineer
- Willow Sage Hart – bells
- Tamara Hatwan – violin
- Emile Haynie – composer, producer
- Jeri Heidin – art direction, design
- Justin Hergett – mixing assistant
- John Hill – composer, producer
- Sam Holland – engineer
- Chin Injeti – bass, producer
- Pranam Injeti – composer
- Eric Isip – mixing assistant
- Tyler Johnson – guitar engineer
- Chris Kasych – Pro Tools
- Jon Keep – composer
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- Danny Keyz – keyboards
- Oli Krauss – cello, viola, violin
- James Krausse – mixing assistant
- Greg Kurstin – bass, composer, engineer, guitar, keyboards, mixing, producer, programming
- Andrew MacPherson – photography
- Billy Mann – acoustic guitar, arranger, bass, composer, drum programming, electric guitar, engineer, percussion, piano, producer
- Max Martin – background vocals, composer, keyboards, producer
- Tony Maserati – mixing
- Marshall Mathers – composer
- Anders Mouridsen – guitar
- Mark Needham – mixing
- Charlie Paakkari – string engineer
- Sara Parkins – violin
- Phillip A. Peterson – strings
- P!nk – background vocals, composer, primary artist
- Khalil Abdul Rahman – composer
- John Rausch – engineer
- Steve Richards – cello
- Liz Rodrigues – background vocals, composer
- Nate Ruess – composer, featured artist
- David Schuler – composer
- Phil Seaford – mixing assistant
- Pawel Sek – guitar engineer
- Jesse Shatkin – engineer
- Shellback – background vocals, bass, composer, drums, guitar, keyboards, producer, programming
- Laura Sik – engineer
- Jake Sinclair – engineer
- Nick Steinhardt – art direction, design
- Dave Stone – bass
- Mike Strange – vocal engineer
- Oliver Straus – engineer
- Irene Taylor – management
- Tracklacers – arranger, bass, drum programming, keyboards, producer
- John X. Volaitis – engineer, recording assistant
- Butch Walker – background vocals, composer, producer
- Pete Wallace – engineer, keyboards, string arrangements
- Dan Wilson – acoustic guitar, composer, keyboards, piano, producer
- Steve Wolf – tambourine
- Jonathan Yudkin – engineer, string arrangements, strings
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