All Cast

Tony Bennett

Tony Bennett

Self

Alec Baldwin

Alec Baldwin

Self

Andrea Bocelli

Andrea Bocelli

Self

Michael Bublé

Michael Bublé

Self

Lady Gaga

Lady Gaga

Self

Billy Joel

Billy Joel

Self

Elton John

Elton John

Self

Diana Krall

Diana Krall

Self

K.D. Lang

K.D. Lang

Self

Wynton Marsalis

Wynton Marsalis

Self

Leslie Odom Jr.

Leslie Odom Jr.

Self

Rufus Wainwright

Rufus Wainwright

Self

Stevie Wonder

Stevie Wonder

Self

Steve Buscemi

Steve Buscemi

Self

Dan Castellaneta

Dan Castellaneta

Homer Simpson (voice)

Robert De Niro

Robert De Niro

Self

John McEnroe

John McEnroe

Self

Regis Philbin

Regis Philbin

Self

Don Rickles

Don Rickles

Self

Kevin Spacey

Kevin Spacey

Self

Bruce Willis

Bruce Willis

Self