Kevin Hart, Rep. Ron Paul, Robert Cray
Adam Levine, Magic Johnson, Grace Potter
Ellen DeGeneres, Josh Lucas, Billy Ray Cyrus
Matthew Perry, Meghan McCain, OneRepublic
Richard Gere, Anthony Robles, Rascal Flatts
Justin Timberlake, Steve Nash, Ryan Bingham
Amy Poehler, Joe Scarborough, Big & Rich
Viola Davis, Paul Wesley, Bonnie Raitt
Zooey Deschanel, Anthony Anderson, ZZ Top
David Spade, Giancarlo Esposito, Rebecca Ferguson
Ann Romney, Seth MacFarlane, Bettye LaVette
Kirstie Alley, Mike "The Situation" Sorrentino, Richie Sambora
Liam Neeson, Lisa Lampanelli, the Gaslight Anthem
Christina Aguilera, Sherri Shepherd, the Piano Guys
Bryan Cranston, Rebel Wilson, Cher Lloyd
Carol Burnett, Armie Hammer, Lang Lang
Christina Applegate, Apolo Anton Ohno
Ben Affleck, Octavia Spencer, Neon Trees
Colin Farrell, Medal of Honor recipient Dakota Meyer, the Hives
Arnold Schwarzenegger, Bubba Watson, the Wallflowers
Tyler Perry, Oscar Pistorius, Plain White T's
Chelsea Handler, Placido Domingo
Terry Bradshaw, Mark Kelly, Grizzly Bear
Whitney Cummings, Rove McManus, the Script
Halle Berry, Ali Wentworth, Gary Clark Jr.
Denzel Washington, Richard Engel, M. Ward
President Barack Obama, No Doubt
Russell Brand, Jane Lynch
Sarah Silverman, Paula Deen
Simon Cowell, Britney Spears, Billy Gardell, Two Door Cinema Club
John C. Reilly, Jenni "JWoww" Farley, Lifehouse
Taylor Lautner, Lior Suchard, Macy Gray
Jamie Lee Curtis, Maggie Elizabeth Jones, ZZ Ward
Marion Cotillard, Olate Dogs
Kristen Stewart, Dax Shepard, Kip Moore
Daniel Craig, Dave Salmoni, Diamond Rings
Sally Field, Chris Matthews, Lord Huron
Meredith Vieira & Richard Cohen, Christina Perri
Lea Michele, Nev Schulnan, Toby Keith
Keira Knightley, Whitney Cummings, Gin Wigmore
Helen Hunt, Paul "DJ Pauly D" DelVecchio, Kylie Minogue
Tim Allen, Nolan Gould, Switchfoot
Chris Matthews, Keegan-Michael Key & Jordan Peele, the Mowgli's
Jennifer Lawrence, Phil & Willie Robertson, Andy Grammer
Lindsay Lohan, David Gregory, Wanda Jackson
Joseph Gordon-Levitt, Kris Jenner, Dan Cummings
Bradley Cooper, Natasha Leggero, PSY
Jim Parsons, Maggie Elizabeth Jones, Delta Rae
Julie Bowen, "Rocket City Rednecks", Little Big Town
Wanda Sykes, Blake Shelton
Newt Gingrich, Ron Shirley, Grouplove
Marisa Tomei, Carson Daly, Il Volo
Gerard Butler, Olivia Munn, the Polyphonic Spree
Khloe Kardashian Odom, Adam Carolla, Matisyahu
Don Johnson, Julie Scardina, Darius Rucker
Bill O'Reilly, Krysten Ritter, Paloma Faith
Leslie Mann, Jim Rome, Garbage
Matt Damon, Of Monsters And Men
Ewan McGregor, Bailee Madison
Albert Brooks, Kerry Washington
Hugh Jackman, Maria Sharapova, J.D. McPherson
Bette Midler, Judd Apatow, Pentatonix
Megan Fox, Colbie Caillat
Quentin Tarantino, LeAnn Rimes
Jamie Foxx, Carl Reiner, the winner of "The Voice"
Katherine Heigl, Marjorie Johnson, Johnny Mathis
Terry Bradshaw, Elle Fanning, Chris Mann