Julie Bowen
Sylvia Anderson
Ruben Studdard
Paul Frees
Andrea Bocelli
Will Arnett
Charles Barkley
Lance Bass
Lewis Macleod
Walker Edmiston
Daniel Radcliffe
R.E.M.
Gloria Estefan
David Walliams
Roger Daltrey
Buzz Aldrin
Gregg Berger
Jason Jones
Drew Brees
Marissa Jaret Winokur
Sheryl Crow
Ryan Seacrest
Kristen Bell
Lance Armstrong
Jessica Hynes
Oliver Postgate
Kevin Cecil
Marv Albert
Ginny Tyler
Jason Alexander
Nicholas Burns
June Whitfield
Jill Scott
Tim Gunn
Peter Linz
Alvin Stardust
Gary Busey
Carol Burnett
Peter Bogdanovich
Cate Blanchett
Rachael Ray
Dolly Wells
Maya Angelou
Brian Williams
Hillary Rodham Clinton
Charles 'Bud' Tingwell
Windsor Davies
Ed Begley Jr.
Marlee Matlin
Tom Meeten
Paul Simon
Anna Quayle
Dixie Chicks
Herb Vigran
Philip Rosenthal
Jonathan Ryland
Michael Hordern
Rhea Perlman
Billy Boyle
Kim Noble
Zac Efron
Edward Asner
Tom Arnold
Andrew Rannells
Jimmy Fallon
Linda Ronstadt
Phil Hartman
George Stephanopoulos
Kareem Abdul-Jabbar
Casey Affleck
Reese Witherspoon
Tony Way
Jake Gyllenhaal
Anne Hathaway
Stevie Wonder
Kadeem Hardison
Luther Vandross
Jim Parsons
Togo Igawa
Blair Underwood
Carly Simon
Anderson Cooper
J.C. Chasez
Paul Rudd
Al Roker
Seth Rogen
Lou Rawls
Cece Winans
Stephen Merchant
BeBe Winans
Kathleen Turner
Marisa Tomei
Meryl Streep
Tyler James Williams
Alison Krauss
Liev Schreiber