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