Paul McCartney

Character: Self

Ringo Starr

Character: Self

David Letterman

Character: Self

LL Cool J

Character: Self - Host

Eric Idle

Character: Self / Nigel Spasm

Kate Beckinsale

Character: Self

Anna Kendrick

Character: Self

Jeff Bridges

Character: Self

Sean Penn

Character: Self

Jesse Carmichael

Character: Self

Mickey Madden

Character: Self

James Valentine

Character: Self

Matt Flynn

Character: Self

PJ Morton

Character: Self

Sam Farrar

Character: Self

Stevie Wonder

Character: Self

Jeff Lynne

Character: Self

Joe Walsh

Character: Self

Dhani Harrison

Character: Self

Ed Sheeran

Character: Self

Keith Urban

Character: Self

Dan Reynolds

Character: Self

Wayne Sermon

Character: Self

Ben McKee

Character: Self

Daniel Platzman

Character: Self

Dave Grohl

Character: Self

Annie Lennox

Character: Self - Eurythmics

Dave Stewart

Character: Self - Eurythmics

John Legend

Character: Self

Alicia Keys

Character: Self

Brad Paisley

Character: Self

Pharrell Williams

Character: Self

Gary Clark Jr.

Character: Self

Don Was

Character: Self - Bass

Steve Lukather

Character: Self - Guitar

Peter Frampton

Character: Self - Guitar

Rami Jaffee

Character: Self - Organ

Greg Phillinganes

Character: Self - Keyboard, Piano

Kenny Aronoff

Character: Self - Drums

Lenny Castro

Character: Self

Kari Kimmel

Character: Self - Background vocals

Judith Hill

Character: Self - Background vocals

Carmel Echols

Character: Self - Background vocals

Adam Levine

Character: Self - Maroon 5 (uncredited)

John Mayer

Character: Self