Arranged By [Orchestral], Keyboards – Marius de VriesBass – Trevor BarryContractor [Orchestral Contractor] – Isobel GriffithsDulcimer, Piano, Arranged By [Orchestral] – Chris Elliot*Engineer – John BroughEngineer [Digital], Engineer [Audio] – Alejandro RodriguezGuitar – Robbie McIntoshHarp – Fiona HibbertMixed By – Andy Bradfield, Humberto GaticaPercussion – Frank RicottiProducer, Engineer, Programmed By – Marius de VriesProgrammed By – Jason BoshoffProgrammed By [Additional] – Alexis SmithProgrammed By [Assistant] – Jason Fleming, Mike Horner, Neil ComberRecorded By [Orchestra] – Gary Thomas

Conductor, Arranged By [Orchestra] – David CampbellContractor [Orchestral Contractor] – Debbi Datz-Pyle, Gina ZimmittiDrums – Josh Groban, Vinnie ColaiutaEdited By [Pro Tools] – Matty Green Engineer [Additional] – David Channing, Humberto GaticaEngineer [Digital], Engineer [Audio] – Alejandro RodriguezMixed By – Humberto GaticaProducer [Vocals] – Guy SigsworthProducer, Arranged By, Engineer – Tawgs Salter

Arranged By – Bill Ross*Contractor [Orchestral Contractor] – Debbi Datz-Pyle, Gina ZimmittiEngineer [Additional] – Alejandro Rodriguez, Chris Brooke, Jorge VivoEngineer [Digital] – Alejandro Rodriguez, Joe WohlmuthEngineer, Programmed By, Engineer [Sound Design] – Jochem van der SaagGuitar – Michael Thompson, Ramon StagnaroProducer, Arranged By, Keyboards – David FosterProducer, Mixed By, Engineer [Orchestra] – Humberto Gatica

Arranged By [Orchestral] – Chris Elliot*Arranged By [Orchestral], Keyboards – Marius de VriesBacking Vocals – Anna Ross, Josh GrobanBass – Trevor BarryContractor [Orchestral Contractor] – Isobel GriffithsDrums – Ian ThomasEngineer – John BroughGuitar – Robbie McIntoshMixed By – Andy BradfieldMixed By [Assistant] – Jason Fleming, Mike Horner, Neil ComberPiano – Josh GrobanProducer, Engineer, Programmed By – Marius de VriesProgrammed By – Jason BoshoffProgrammed By [Additional] – Alexis SmithRecorded By [Orchestra] – Gary Thomas Vibraphone, Percussion – Frank Ricotti

Arranged By – Bill Ross*Contractor [Orchestral Contractor] – Debbi Datz-Pyle, Gina ZimmittiEngineer [Additional] – Alejandro Rodriguez, Chris Brooke, Jorge VivoEngineer [Digital] – Alejandro Rodriguez, Joe WohlmuthGuitar – Michael Thompson, Ramon StagnaroMixed By, Engineer [Vocals], Engineer [Orchestra], Co-producer – Humberto GaticaProducer, Arranged By, Keyboards – David FosterSynthesizer, Engineer, Programmed By, Engineer [Sound Design] – Jochem van der Saag

Arranged By [Orchestral] – Chris Elliot*Backing Vocals – Anna Ross, Josh GrobanBass – Trevor BarryContractor [Orchestral Contractor] – Isobel GriffithsDrums – Ian ThomasEngineer – John BroughGuitar – Robbie McIntoshMixed By – Andy BradfieldMixed By [Assistant] – Jason Fleming, Mike Horner, Neil ComberPiano, Arranged By [Orchestral], Keyboards – Marius de VriesProducer, Engineer, Programmed By – Marius de VriesProgrammed By – Jason BoshoffProgrammed By [Additional] – Alexis SmithRecorded By [Orchestra] – Gary Thomas Vibraphone, Percussion – Frank Ricotti

Arranged By – Bill Ross*Contractor [Orchestral Contractor] – Debbi Datz-Pyle, Gina ZimmittiDrums – Josh GrobanEngineer [Additional] – Alejandro Rodriguez, Chris Brooke, Jorge VivoEngineer [Digital] – Alejandro Rodriguez, Joe WohlmuthGuitar – Michael ThompsonMixed By, Engineer, Co-producer – Humberto GaticaProducer, Arranged By, Keyboards – David FosterSynthesizer, Engineer, Programmed By, Engineer [Sound Design] – Jochem van der Saag

Arranged By [Orchestral] – Chris Elliot*Bass – Trevor BarryContractor [Orchestral Contractor] – Isobel GriffithsEngineer – John BroughEngineer [Digital], Engineer [Audio] – Alejandro RodriguezGuitar – Dean ParksHarp – Fiona HibbertMixed By – Humberto GaticaPiano – Josh GrobanProducer, Engineer, Programmed By – Marius de VriesProgrammed By – Jason BoshoffProgrammed By [Effects], Programmed By [Additional] – Alexis SmithRecorded By [Assistant] – Jason Fleming, Mike Horner, Neil ComberRecorded By [Orchestra] – Gary Thomas

Producer, Engineer, Mixed By, Programmed By, Piano, Kalimba [Mbira], Instruments [All Other] – Imogen Heap

Arranged By – Jeremy LubbockCello [Solo] – Vanessa Freebairn-SmithContractor [Orchestral Contractor] – Jules Chaiken*Engineer [Additional] – Alejandro Rodriguez, Chris Brooke, Jorge VivoEngineer [Digital] – Alejandro Rodriguez, Joe WohlmuthEngineer, Programmed By, Engineer [Sound Design] – Jochem van der SaagGuitar – Michael ThompsonProducer, Arranged By, Keyboards – David FosterRecorded By, Mixed By, Co-producer – Humberto Gatica

Bass – Sean HurleyEdited By – William Malina*Engineer [Assistant] – Brian Warwick, Dan Tobiason, James Willettes, John Adams , Pablo ArrayaEngineer [Audio] – Alejandro RodriguezGuitar – Joel ShearerKeyboards – Zach Rae*Mixed By – Humberto GaticaPercussion – Blair SintaProducer, Keyboards – Glenn Ballard*Producer, Piano – Josh GrobanRecorded By – Scott CampbellVocals [Guest] – Ladysmith Black Mambazo

Backing Vocals – Ladysmith Black Mambazo, Susie Suh, Vusi MahlaselaBass – Sean HurleyBass, Vocals – Bakithi KumaloCo-producer – Josh GrobanDrums – Anton Fig, Matt ChamberlainEdited By – William Malina*Engineer – Scott CampbellEngineer [Assistant] – Brian Warwick, Dan Tobiason, James Willettes, John Adams , Pablo ArrayaEngineer [Digital], Engineer [Audio] – Alejandro RodriguezGuitar – Tim Pierce, Vincent Nguni*Keyboards – Zach Rae*Mixed By, Engineer [Additional] – Humberto GaticaProducer, Keyboards – Glenn Ballard*

Arranged By [Horns], Brass – Greg AdamsArranged By [Strings] – Simon HaleBass – Nathan EastBrass – Greg Vail, Lee Thornburg, Nick Lane, Tom ScottConductor [Strings] – Bill Ross*Contractor [Orchestral Contractor] – Debbi Datz-Pyle, Gina ZimmittiDrums – Vinnie ColaiutaEngineer – Humberto GaticaGuitar – Michael ThompsonMixed By – Alejandro Rodriguez, Humberto GaticaPiano, Electric Piano [Rhodes] – Herbie HancockProducer, Arranged By, Keyboards – Eric Mouquet, Josh GrobanTambourine – Kaitlyn Barton

Contractor [Orchestral Contractor] – Debbi Datz-Pyle, Gina ZimmittiEngineer [Digital] – Alejandro RodriguezMixed By, Engineer – Humberto GaticaPiano, Backing Vocals – Josh Groban