David Foster as Self

Kristin Chenoweth as Self

Todd Almond as Self

Kelly Devine as Self

Jaymes Foster as Self

Eleanor Foster as Self (archive footage)

Bill Clinton as Self

Barbra Streisand as Self

Quincy Jones as Self

Lionel Richie as Self

Diane Warren as Self

Tommy Mottola as Self

Carole Bayer Sager as Self

Paul Anka as Self

Céline Dion as Self

John J.R. Robinson as Self

Robert Lamm as Self

James Pankow as Self

Lee Loughnane as Self

Peter Cetera as Self

Jordan Foster as Self

Erin Foster as Self

Amy Foster as Self

Sara Foster as Self

Clive Davis as Self

Ben Vereen as Self (archive footage)

Katherine Tempesta as Self

Brian Mulroney as Self

Michael Bublé as Self

Mila Mulroney as Self

AnnMarie Milazzo as Self

Andrea Bocelli as Self

Josh Groban as Self

Katharine McPhee as Self

Marc Johnston as Self

Jeffrey Latimer as Self

Michael Ravenhill as Self