Cast
Ben Vereen
Self (archive footage)
Michael Bublé
Self
Katharine McPhee
Self
Peter Cetera
Self
Erin Foster
Self
Josh Groban
Self
David Foster
Self
Todd Almond
Self
Lionel Richie
Self
Diane Warren
Self
Paul Anka
Self
Lee Loughnane
Self
Andrea Bocelli
Self
Bill Clinton
Self
Céline Dion
Self
Quincy Jones
Self
James Pankow
Self
Sara Foster
Self
Kristin Chenoweth
Self
Carole Bayer Sager
Self
Robert Lamm
Self
Brian Mulroney
Self
Barbra Streisand
Self
Tommy Mottola
Self
Clive Davis
Self