Vocals [Additional] – Deray

Featuring – Adam LevineVocals [Additional] – Tony "Penafire" Williams*

Featuring – Lupe Fiasco

Featuring – Jamie FoxxScratches – A-TrakVocals [Additional] – Don C, Plain Pat

Featuring – GLC, Paul WallVocals [Additional] – Paul Wall, Tony "Penafire" Williams*

Featuring – Common

Featuring – Game*Vocals [Additional] – Charlie Wilson, Keyshia Cole, Tony "Penafire" Williams*

Bass – Keenan "Keynote" HollowayKeyboards – Ervin "EP" Pope*Vocals [Additional] – Tony Williams

Arranged By [String And Brass Arrangements] – Jon BrionCello – Armen Ksajikian, Matt Cooker*, Richard Dodd , Victor LawrenceContrabass – Denise Briese, Frances Senger, Jason TorreanoFeaturing – Brandy French Horn – Brad Warnaar, Rick Todd*Orchestrated By [String Orchestrations] – Eric GorfainTrombone – Andrew Martin*, Steve Holtman*Trombone [Bass] – Bruce OttoTrumpet, Flugelhorn – Dan Fornero, Gary GrantViola – David Sage, Marda Todd, Piotr Jandule*, Tom TallyViolin – Alyssa Park, Amy Wickman, Audrey Solomon, Daphne Chen, Eric Gorfain, Julie Rogers , Marisa Kuney, Susan Chatman, Terry Glenny, Victoria Lanier

Vocals [Additional] – Strings

Drums [Live Drums] – Michele Gondry*Featuring – Jay-ZGuitar – Dave TozerKeyboards – Tom Craskey

Featuring – Nas, Really DoeVocals [Additional] – Tony "Penafire" Williams*

Vocals [Additional] – John Legend

Arranged By [String And Brass Arrangements] – Jon BrionBass – Keenan "Keynote" HollowayCello – Armen Ksajikian, Matt Cooker*, Richard Dodd , Victor LawrenceContrabass – Denise Briese, Frances Senger, Jason TorreanoFrench Horn – Brad Warnaar, Rick Todd*Keyboards – Ervin "EP" Pope*Orchestrated By [String Orchestrations] – Eric GorfainTrombone – Andrew Martin*, Steve Holtman*Trombone [Bass] – Bruce OttoTrumpet, Flugelhorn – Dan Fornero, Gary GrantViola – David Sage, Marda Todd, Piotr Jandule*, Tom TallyViolin – Alyssa Park, Amy Wickman, Audrey Solomon, Daphne Chen, Eric Gorfain, Julie Rogers , Marisa Kuney, Susan Chatman, Terry Glenny, Victoria LanierVocals [Additional] – John Legend

Arranged By [String Arrangements] – Jon BrionCello – Armen Ksajikian, Matt Cooker*, Richard Dodd , Victor LawrenceFeaturing – Cam'ron, Consequence Orchestrated By [String Orchestrations] – Eric GorfainViola – David Sage, Marda Todd, Piotr Jandule*, Tom TallyViolin – Alyssa Park, Amy Wickman, Audrey Solomon, Daphne Chen, Eric Gorfain, Julie Rogers , Marisa Kuney, Susan Chatman, Terry Glenny, Victoria Lanier

Drums [Live] – Michele Gondry*Guitar – Dave TozerKeyboards – Tom Craskey