- Pete Anderson — engineer
- Antonina Armato — producer
- Tommy Barbarella — keyboard
- Michael Bland — drums
- Paul Bushnell — bass guitar
- Scott Campbell — engineer
- Ken Chastain — percussion
- Dorian Crozier — drums
- Scott Cutler — producer
- Miley Cyrus — background vocals, lead vocals
- Aaron Dudley — guitar
- Mark Endert — mixing
- John Fields — background vocals, bass guitar, engineer, guitar, keyboard, producer, programming
- Josh Freese — drums
- Steve Hammons — drum programming, engineer, mixing
- James Harrah — guitar
- Sean Hurley — bass guitar
- Tim James — producer
- Parker Jayne — drums
- Enny Joo — art direction, design
- Devrìm Karaoglu — drum programming, horn arrangement, keyboard, performer, producer, string arrangement
- Abe Laboriel, Jr. — drums
- David Levita — guitar
- Jon Lind — A&R, background vocals
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- Chris Lord-Alge — mixing
- Stephen Lu — keyboards, string arrangement
- Nigel Lundemo — digital editing, engineer
- Gavin MacKillop — engineer
- Jason Morey — executive producer
- Jamie Muhoberac — piano
- Sheryl Nields — photography
- Clif Norrell — mixing
- William Owsley III — background vocals, guitar, mandolin
- Paul Palmer — mixing
- Christi Parker — A&R
- Katy Perry — background vocals
- Tim Pierce — guitar
- Anne Preven — background vocals, producer
- Zac Rae — keyboard
- Gina Schock — background vocals
- David Snow — creative director
- Ryan Star — background vocals
- Heather Sturm — engineer
- Robert Vosgien — mastering
- Windy Wagner — background vocals
- Cindy Warden — A&R
- Matthew Wilder — engineer, keyboard, mixing, producer, programming
- Terry Wood — background vocals
- Gigi Worth — background vocals
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