Album Credits |
|
Performance Credits
|
| Katy Perry | | Primary Artist, Piano, Vocals, Human Whistle |
| Bill Reichenbach Jr. | | Horn Section |
| Cathy Dennis | | Background Vocals |
| Paul Bushnell | | Bass |
| Daniel Chase | | Keyboards |
| Scott Cutler | | Guitar |
| Gary Grant | | Horn Section |
| Jerry Hey | | Horn Section |
| Dan Higgins | | Horn Section |
| Dave Stewart | | Guitar |
| Max Martin | | Guitar |
| Benny Blanco | | Drums |
| Darren Dodd | | Drums |
| Doctor Luke | | Bass, Guitar, Drums |
| Steven Wolf | | Drums |
| David Levita | | Guitar |
| Sean Gould | | Guitar |
| Dave Katz | | Guitar |
| Greg Wells | | Bass, Guitar, Piano |
|
|
Technical Credits
|
| Jeff Bova | | Programming |
| Daniel Chase | | Programming |
| Scott Cutler | | Producer |
| Jerry Hey | | Horn Arrangements |
| Steve Jensen | | Management |
| Bill Malina | | Engineer |
| Dave Stewart | | Producer, Instrumentation |
| Butch Walker | | Producer, Instrumentation |
| Mike Fennel | | Drum Engineering |
| Chris "Lil" Smith | | Programming, Producer, Remixing |
| John Winter | | Video Producer |
| Paul David Hager | | Engineer |
| Martin Kirkup | | Management |
| Anne Preven | | Producer |
| Benny Blanco | | Programming, Producer |
| Ned Douglas | | Programming, Engineer |
| Emily Wright | | Engineer |
| Doctor Luke | | Programming, Producer |
| Brian "Big Bass" Gardener | | Mastering |
| Sam Hollander | | Programming, Engineer |
| Michael Caffery | | Engineer, Drum Engineering, Drum Producer |
| Ed Sherman | | Art Direction |
| Dave Katz | | Programming |
| Sluggo | | Producer |
| Aniela Gottwald | | Engineer |
| S*A*M | | Producer |
| Tatiana Gottwald | | Engineer |
| Greg Wells | | Producer, Engineer, beats, Instrumentation |
| Luke Tozour | | Engineer |
| Nick Banns | | Engineer |
| Shayne Ivy | | Illustrations |
| Kinga Burza | | Video Director |
| Alan Ferguson | | Video Director |
| Melissa Larson | | Video Producer |
| Shane Ivy | | Illustrations |