Britney

Engineer – Ryan Smith , Tim RobertsInstruments – Chad Hugo, Pharrell WilliamsProducer – The NeptunesRecorded By – Andrew Coleman , Brian GartenWritten-By – C. Hugo*, P. Williams*

Backing Vocals – BossLadyEngineer – Charles McCrorey, John Amatiello, Michael TuckerGuitar – Max MartinMixed By – Max Martin, RamiProducer – Max Martin, RamiRecorded By – Max Martin, RamiTurntables – Daniel SavioWritten-By – M. Martin*, Rami

Backing Vocals – Jennifer KarrBass – Josh SchwartzDrum Programming – Brian Kierulf, Rodney JerkinsEngineer – Aaron Kaplan, Javier Valverde, Jill TenganGuitar – Brian Kierulf, Isaac Phillips, Josh SchwartzMixed By – Jean-Marie HorvatProducer – Rodney JerkinsWritten-By – Brian Kierulf, B. Spears*, J. Schwartz*, R. Jerkins*

Backing Vocals – Jeanette Olsson, Max MartinBass – Thomas LindbergGuitar – Esbjörn ÖhrwallProducer – Max MartinWritten-By – Dido, M. Martin*, Rami

Instruments – Chad Hugo, Pharrell WilliamsMixed By – Serban GheneaProducer – The NeptunesWritten-By – C. Hugo*, P. Williams*

Backing Vocals – Jennifer KarrProducer – Brian Kierulf, Joshua Michael SchwartzWritten-By – B. Kierulf*, B. Spears*, J. Schwartz*

Backing Vocals – Sue Ann Carwell, Tyler CollinsProducer – Rodney JerkinsWritten-By – A. Merrill*, J. Hooker*

Backing Vocals – Jeanette OlssonProducer – Max Martin, RamiWritten-By – Britney Spears, M. Martin*, Rami

Backing Vocals – Jennifer KarrProducer – Rodney JerkinsWritten-By – B. Kierulf*, B. Spears*, J. Schwartz*

Backing Vocals – Annika Thörnquist, BossLady, Nana HedinProducer – Max Martin, RamiWritten-By – M. Martin*, Rami

Backing Vocals – Jennifer KarrMixed By – Michael TuckerProducer – Brian Kierulf, Joshua Michael SchwartzWritten-By – Brian Kierulf, Britney Spears, Josh Schwartz

Producer – Peter KvintWritten-By – Jörgen Elofsson, Vernon D. Hill

Arranged By – Justin TimberlakeBacking Vocals – Justin TimberlakeInstruments – Wade J. RobsonMixed By – Rich TravaliProducer – Justin Timberlake, Wade J. RobsonWritten-By – Justin Timberlake, Wade J. Robson

Remix – Rodney Jerkins