| # | Title | Length |
|---|
| 1 | Alien- programming:
- HyGrade and William Orbit
- engineer:
- John Hanes, Alan O'Connell and Alan Tilston
- associate executive producer:
- Anthony Preston
- executive producer:
- will.i.am
- producer:
- HyGrade, William Orbit and Anthony Preston
- mixer:
- Serban Ghenea
- additional vocals:
- Ana Diaz
- lead vocals:
- Britney Spears
- phonographic copyright (℗) by:
- RCA Records
- mixed at:
- MixStar Studios in Virginia Beach, Virginia, United States
- engineered at:
- Guerilla Studios in London, England, United Kingdom
- recording of:
- Alien
- writer:
- Ana Diaz, William Orbit, Anthony Preston, Britney Spears and Daniel Traynor
- publisher:
- Britney Spears Music, Guerilla Studios Limited, Sony/ATV Music Publishing Scandinavia and Universal Music–Z Songs
| ?:?? |
| 2 | Alien (DJ FmSteff 2013 Totalmix 112bpm) | ?:?? |
| 3 | Alien (DJ FmSteff 2013 Totalmix 120bpm) | ?:?? |
| 4 | Alien (DJ FmSteff 2013 Totalmix edit) | ?:?? |
| 5 | Alien (Dirty Pop deconstruction) | ?:?? |
| 6 | Body Ache- recording engineer:
- Padraic Kerin, Julian Prindle and will.i.am
- programming:
- David Guetta and Giorgio Tuinfort
- engineer:
- AJ Clark, Jacob Dennis, Billy Hickey, Padraic Kerin, Julian Prindle and will.i.am
- associate executive producer:
- Anthony Preston
- executive producer:
- will.i.am
- producer:
- David Guetta, Anthony Preston, Giorgio Tuinfort and will.i.am
- mixer:
- Daddy’s Groove
- guitar:
- Pierre-Luc Rioux
- instruments:
- David Guetta and Giorgio Tuinfort
- lead vocals:
- Britney Spears
- phonographic copyright (℗) by:
- RCA Records
- recording of:
- Body Ache
- writer:
- Nick Clow, Richard Gonzalez, David Guetta, Luciana, Myah Marie, Anthony Preston, Britney Spears and Giorgio Tuinfort
- publisher:
- BMG Gold Songs, Britney Spears Music, Piano Songs, Sony/ATV Music Publishing (UK) Ltd., Sony/ATV Songs LLC, Tainted Freq Music, Universal Music–Z Songs and What a Publishing Limited
| ?:?? |
| 7 | Body Ache (Dirty Pop deconstruction) | ?:?? |
| 8 | Body Ache (Matt Nevin extended mix) | ?:?? |
