Courteney Cox, Chris D'Elia, Dan Soder

Kaley Cuoco, Anthony Mackie, Gary Clark Jr.

Ricky Gervais, Deepak Chopra, Imagine Dragons

Ryan Gosling, Kevin Hart, ZZ Ward

Dennis Quaid, Rob Riggle, Chris Mann

Baron Vaughn

Marion Cotillard, Jim Jefferies, Trampled By Turtles

Martin Short, Jake Bugg

Timothy Olyphant, Busy Philipps, Coheed & Cambria

Julia Stiles, The Lone Bellow

Kathy Griffin, Blake Anderson, Electric Guest

Adam Scott, Mo Mandel

Emmy Rossum, Dave Franco, Los Straitjackets

Dax Shepard, Adam Cayton-Holland

Dr. Sanjay Gupta, Ben Folds Five

Occupy Conan: When Outsourcing Goes Too Far

Vintage Trouble

Jennifer Lawrence, Nick Kroll, Randy Houser

Rooney Mara, Jeff Ross, Dirty Projectors

Chris Tucker, Darryl Lenox

Don Cheadle, Bill Burr, Ed Sheeran

Bill Maher, Celeste Anderson, Jackie Kashian

Kathryn Bigelow, Lupe Fiasco featuring Guy Sebastion

Dr. Phil McGraw, Julianne Hough

Andy Samberg, Josh Hopkins, Lisa Loeb

Nicole "Snooki" Polizzi, Jenni "JWoww" Farley, Ken Marino, Mark Normand

Mila Kunis, Chris Hardwick, Family of the Year

Zooey Deschanel, Ben McKenzie, Japandroids

Kevin Nealon, Nicholas Hoult

Johnny Galecki, The Miz, Hunter Hunted

Kunal Nayyar, Julian Newman, Eugene Mirman

Jenny McCarthy, Justin Chon

Colin Farrell, Jenna Elfman, Frightened Rabbit

Matthew Fox

James Franco, Robert Kirkman

Snoop Lion, Rorke Denver

Nina Dobrev

Halle Berry, Ben Hoffman

Steve Carell, Luke Bryan

Magic Johnson, Thandie Newton, Langhorne Slim

Vanessa Hudgens, Jerry Trainor, Emily Heller

Seth Green, Charles Phoenix

Seth Rogen

Paul Rudd, von Grey

Darius Rucker

Charles Barkley, Macklemore & Ryan Lewis

Adam Sandler, Molly Shannon, Nate Bargatze

Matthew Perry, Nikolaj Coster-Waldau, Escondido

Jeremy Piven, Jeremy Wade, The Three O'Clock

Charlie Sheen, Tony Hale, Dropkick Murphys

Bengt Washburn

Russell Brand, Of Monsters and Men

Kate Upton, Fall Out Boy

Eva Mendes, Chris Messina, Alt-J

Brad Garrett, Amy Schumer, Old Crow Medicine Show

Ke$ha, Andy & Johnathan Hillstrand, Paramore

Bo Burnham

Julia Louis-Dreyfus, Bob Saget

Keith Urban, Guillermo Diaz

Edie Falco, Marc Maron, Iron & Wine

Simon Helberg, "Paper Airplane Guy" John Collins, Marina and the Diamonds

Don Cheadle, Pete Holmes, RNDM

Jennifer Love Hewitt, Justin Bartha, the Slide Brothers featuring Shemekia Copeland

Zach Galifianakis, Jim Gaffigan, Beware of the Darkness

Zachary Quinto, Heather Graham

Sarah Chalke, the Black Angels

Ed Helms, Alice Eve, the cast of "Workaholics"

Jesse Eisenberg, J.J. Abrams, 30 Seconds To Mars

Vin Diesel, Steve Schirripa

Ellen Page, Craig Robinson, Myq Kaplan

Nick Offerman, Lena Headey, Divine Fits

Alexander Skarsgard, George R.R. Martin, Houndmouth

Danny McBride, Giada De Laurentiis, Capital Cities

Vince Vaughn, Owen Wilson, Maria Menounos, Thompson Square

Jonah Hill, Coco & Ice T, Dale Earnhardt Jr. Jr.

Nathan Fillion, Bret Michaels, Kumail Nanjiani

Usher, She & Him

Sasha Alexander, Sharon Osbourne, Roy Wood Jr.

Heather Locklear, Nick Swardson, Mavis Staples

Elijah Wood, Bill Burr, Ryan Bingham

Kevin Hart, Chris Kluwe, Eve

Armie Hammer, Angie Harmon, Brent Morin

Mary-Louise Parker, Breckin Meyer, Portugal. The Man

Kevin Bacon, Bernhoft

John Malkovich, Derek Waters, Skillet

Charlie Day, Brittney Griner, The Neighbourhood

Howie Mandel, Professor Brian Cox, Mikal Cronin

Noah Wyle, Ben Schwartz, Pretty Lights with Talib Kweli

Jeff Garlin, Olivia Munn, Kumail Nanjiani

Bill Hader, Alison Pill, Jimmy Eat World

Aubrey Plaza, Kumail Nanjiani, the 1975

Aaron Paul, Nick Frost, Bastille

Steven Ho, Peter Sarsgaard

Eric McCormack, Mitchie Brusco, Franz Ferdinand

Neil Patrick Harris, Shailene Woodley, Dan St. Germain

Kevin Nealon, Christmas Abbott, Edward Sharpe & the Magnetic Zeros

Rebecca Romijn, Michael B. Jordan, Tom O'Dell

Lisa Kudrow, Florida Georgia Line

Steve Martin & Edie Brickell, Leven Rambin

Sharon Stone, Anthony Jeselnik, Julian McCullough

Jennifer Aniston, Paul Scheer

Val Kilmer, Amber Heard, Paramore

Liam Hemsworth, Chloe Grace Moretz, J. Cole

Eric Bana, Josh Gad, the National

Harrison Ford, Donald Faison, Kurt Braunohler

Jason Biggs, Alison Pill, Rory Scovel

Mike Tyson, Katie Aselton, Spin Doctors

Carl Reiner, Cheryl Hines, Delta Rae

Patton Oswalt, Robert Reich, Tony Deyo

Simon Pegg, Local Natives

Rose Byrne, Gov't Mule

Key & Peele, Kaitlin Olson, Wavves

Zooey Deschanel, Kirk Fox, Jason Isbell

Atlas Genius

Seth Green, Lizzy Caplan, Sammy Obeid

Thompson Square

The cast of "Breaking Bad", Los Cuates De Sinaloa

Jane Lynch, Natasha Lyonne, Mike Lawrence

Charlie Day, Rob McElhenney, Glenn Howerton, Deer Tick

Andy Samberg, Slash

Demi Lovato, J.B. Smoove, Moby

Adam Scott, Jake Bugg

Cee-Lo Green, Stephen Merchant, Goodie Mob

Jerry O'Connell, Lauren Cohan, Erin Foley

Steven Yeun, Eric Andre, Aparna Nancherla

Samantha Gordon, Jake Owen

Ke$ha, Jesse Bering, Fitz and the Tantrums

Jared Leto, Kaitlin Olson, Ricky Skaggs & Bruce Hornsby

Ethan Hawke, Pete Holmes, Tedeschi Trucks Band

Michael C. Hall, Jeb Corliss, Sam Simmons

Anna Faris, Jackson Nicoll, Okkervil River

Adam Devine, Lindsey Stirling

Steven Wright

Queen Latifah, Asa Butterfield

Johnny Knoxville, Casey Wilson, Queens of the Stone Age

Rachel McAdams, Norman Reedus

Kevin Kline, King Krule

David Mizejewski, Artie Lange

Aziz Ansari, Deepak Chopra, Adam Yenser

Chris Hemsworth, Marc Maron, Gavin DeGraw

Col. Chris Hadfield, Avril Lavigne

Dax Shepard, Regina Hall, Sean Patton

Will Arnett, Jim Gaffigan, M.I.A.

Melissa McCarthy, Billy Gardell, Chris Elliott

Eric Stonestreet, David Morrissey, Reggie Watts

Simon Cowell, Paulina Rubio, Jimmy Pardo

Ron Burgundy, Jessie Ware

James Franco, Neal McDonough