Engineer [Assistant] – Keith GretleinMixed By [Additional Assistant] – Christian BakerProducer – Mark BatsonSynthesizer [Moog Bass], Programmed By [Programmed Strings], Drum Programming – Mark BatsonWritten-By – Mark Batson, Marsha Ambrosius

Arranged By [Horns] – Alicia Keys, Ray ChewDrums [Live] – Mark RobohmEngineer [Assistant] – Seamus TysonFrench Horn – Jason SugataMellotron, Synthesizer [Moog, Synth Bass] – Alicia KeysSaxophone [Alto] – Darryl DixonSaxophone [Baritone] – Carl MaraghiSaxophone [Tenor] – David Watson*Synthesizer [Moog Bass], Organ [B-3] – Mark BatsonTrombone [Tenor/bass] – Michael DeaseTrombone [Tenor] – Ryan KeberleTrumpet [#2] – Duane EubanksTrumpet [Lead] – Jumaane SmithWritten-By – Steve Mostyn

Acoustic Guitar – Steve MostynCo-producer – Dirty Harry (3)Mellotron, Synthesizer [Jupiter, Vocoder] – Alicia KeysWritten-By – George M. Harry

Co-producer – Kerry "Krucial" Brothers*Guitar [Lead And Rhythm] – John "Jubu" SmithSynthesizer [Lead Moog] – Alicia Keys

Backing Vocals, Guitar [Lead And Rhythm] – John MayerBass – Sean HurleyDrums [Live] – Steve JordanEngineer [Additional] – Chad FranscoviakEngineer [Assistant] – Seamus TysonFeaturing – John MayerGuitar [Guitar 2] – David Ryan HarrisProducer – John MayerWritten-By – John Mayer

Arranged By [All Instruments], Programmed By [All Instruments] – Jack SplashArranged By [Vocals] – Alicia KeysBacking Vocals – Harold Lilly, L. Green*Bass – Ethan PhillipsDrums – Sean O'SheaGuitar – Sergio RiosKeyboards – Dan HastiePercussion – Stewart KillenProducer – Jack SplashProducer [Vocals] – Alicia KeysWritten-By – Matthew Kahane

Bass – Paul ILL*Engineer – Linda Perry, Manny MarroquinEngineer [Additional] – Stuart WhiteGuitar [Lead And Rhythm] – John Salvatore ScaglioneOrgan [B-3], Mellotron – Damon Fox (2)Producer – Linda Perry

Arranged By [All Instruments], Programmed By [All Instruments] – Jack SplashArranged By [Vocals] – Alicia KeysBass – Ethan PhillipsDrums – Sean O'SheaGuitar – Sergio RiosKeyboards – Dan HastiePercussion – Stewart KillenProducer – Jack SplashProducer [Vocals] – Alicia KeysWritten-By – Carl Hampton, Josephine Bridges*, Matthew Kahane, Tom Nixon

Acoustic Guitar – Steve MostynArranged By [Horns] – Alicia KeysEngineer [Assistant] – Keith GretleinMixed By [Additional Assistant] – Christian BakerPercussion – Trevor Lawrence, Jr.*Piano, Drum Programming, Arranged By [Horns] – Mark BatsonProducer – Mark BatsonSaxophone – Everette K. Harp*Trombone – Harry KimTrumpet – David G. Stout*Written-By – Mark Batson, Paul L. Green

Arranged By [Horns] – Kerry "Krucial" Brothers*Organ [B-3], Arranged By [Horns] – Mark BatsonSaxophone – Everette K. Harp*Trombone – Harry KimTrumpet – David G. Stout*Written-By – Johnnie Frierson, Mary Frierson

Backing Vocals – Novel Stevenson*, L. Green*Guitar – John "Jubu" Smith, Ron HaneyWritten-By – Novel Stevenson*, Paul L. Green, Ron Haney, Steve Mostyn

Backing Vocals, Piano – Linda PerryBass – Paul ILL*Engineer – Linda PerryEngineer [Assistant] – Kristofer KaufmanEngineer [Right Hand Man And Pro-tools Engineer At Kung Fu Gardens] – Andrew ChavezGuitar – Peter Thorn (2)Organ [B-3], Synthesizer [Moog] – Damon Fox (2)Producer – Linda PerryRecorded By [All Vocals] – Ann Mincieli