Elvis Costello

Self - Musician

Les Paul

Self - Musician

Erykah Badu

Self - Musician

Bonnie Raitt

Self - Musician

Branford Marsalis

Self - Musician

Eric Clapton

Self - Musician

Dave Matthews

Self - Musician

Questlove

Self - Musician: The Roots (as Questlove)

Forest Whitaker

Self - Narrator (voice)