Bass, Drums, Synthesizer – will.i.am*Engineer – Padriac "Padlock" Kerin*, will.i.am*Guitar – George Pajon*Mixed By – Dylan Dresdow, will.i.am*Producer – will.i.am*Recorded By – Padraic "Padlock" Kerin*Written-By – Cheryl Cole, George Pajon*, William Adams*

Mixed By – Kevin "KD" Davis*Producer – SyienceRecorded By – Neil TuckerWritten-By – Ingrid Michaelson, Marshall Altman

Bass, Drums, Synthesizer – will.i.am*Engineer – Padriac "Padlock" Kerin*, will.i.am*Guitar – George Pajon*Mixed By – Dylan Dresdow, will.i.am*Producer – William Adams*, will.i.am*Strings, Synthesizer – Keith HarrisWritten-By – Cheryl Cole, Stacy BartheWritten-By [Sample] – Andreas Meid*

Backing Vocals [Additional] – RaVaughn BrownDrums, Keyboards – Steve Kipner, Wayne WilkinsEngineer – Mark VintenMixed By – Mark "Spike" Stent*Mixed By [Assistant] – Matty Green Producer – Steve Kipner, Wayne WilkinsWritten-By – Andre Merritt, Steve Kipner, Wayne Wilkins

Backing Vocals [Additional] – Nikki FloresBass – Jerry "Wonda" Duplessis*Drums, Keyboards – Steve Kipner, Wayne WilkinsMixed By – Mark "Spike" Stent*Mixed By [Assistant] – Matty Green Producer – Sam Watters, Wayne WilkinsWritten-By – Louis Biancaniello, Olivia Waithe, Sam Watters, Steve Kipner, Wayne Wilkins

Bass – Caleb SpeirDrums, Synthesizer – will.i.am*Engineer – Padriac "Padlock" Kerin*, will.i.am*Mixed By – Dylan Dresdow, will.i.am*Producer – will.i.am*Written-By – Caleb Speir, Cheryl Cole, William Adams*

Arranged By, Instruments [All], Producer – Soulshock And Karlin*Engineer – Bill MalinaGuitar [Additional] – Sean HurleyMixed By – Manny Marroquin, SoulshockMixed By [Assistant] – Christian Plata, Erik MadridWritten-By – C. Schack*, K. Karlin*, Priscilla ReneaWritten-By [Sample] – Richard Pegue

Backing Vocals – Ayak Thiik*Engineer – Beatriz Artola, Neil TuckerMixed By – Tom ElmhirstProducer – Fraser T. Smith*, Taio CruzWritten-By – Fraser T. Smith*, Taio Cruz

Arranged By [Strings], Conductor – Larry GoldBacking Vocals – Genessa "Gigi" Escobar*Bass – Adam BlackstoneCello – Glenn FischbachEngineer – Jeff ChestekEngineer [Assistant] – Montez Roberts, Rick FredrichGuitar – Randy BowlandMixed By – Kevin "KD" Davis*Producer – SyienceRecorded By – Mikaelin Bluespruce, Neil TuckerViola – Peter Nocella*, Ruth FrazierViolin – Eliza Cho, Emma Kummrow, Gregory Teperman, Igor Szwec, Luigi Mazzocchi, Michelle BishopWritten-By – Chris Braide, Nikola Bedingfield

Drums, Synthesizer – will.i.am*Engineer – Padriac "Padlock" Kerin*, will.i.am*Mixed By – Dylan Dresdow, will.i.am*Producer – will.i.am*Recorded By – Padraic "Padlock" Kerin*Written-By – Cheryl Cole, William Adams*Written-By [Elements] – Christine McVie, Eddy Quintela

Backing Vocals – Cee-Lo, Simon BattleEngineer – Padraic Kerin, will.i.am*Engineer [Assistant Recording Engineer] – Joe PelusoEngineer [Co-Engineered] – Tal HerzbergGuitar – Josh Lopez*Mixed By – Tony MaseratiPiano – will.i.am*Producer – will.i.am*Recorded By – Padraic "Padlock" Kerin*Written-By – William Adams*