All Cast

David Foster

David Foster

Self

Nita Whitaker

Nita Whitaker

Self

Peter Cetera

Peter Cetera

Self

Michael Bublé

Michael Bublé

Self

Josh Groban

Josh Groban

Self

Nick Carter

Nick Carter

Self

Enrique Iglesias

Enrique Iglesias

Self

Céline Dion

Céline Dion

Self