Ralph Fiennes, Juliette Lewis, Austin Mahone

Emma Thompson, James Marsden, Kelly Clarkson

Joaquin Phoenix, Candice Bergen, Iron & Wine and Calexico

John Goodman, Michelle Dockery, Yo Gabba Gabba!

Amy Adams, Oscar Isaac, Jack Johnson

Rashida Jones, Carrie Underwood, Ariana Grande feat. Mac Miller

Ed Burns, Steven Van Zandt, Jeff Musial, Florida Georgia Line

Josh Hutcherson, Budd Friedman, Kelly Clarkson

Kelly Ripa, Stephen Moyer, Mazzy Star, Jake Clemons

Sarah Silverman, Lenny Kravitz, chef Michael Anthony

Liam Hemsworth, Bobby Moynihan, Sleigh Bells

Will Forte, Charlie Wilson

Forest Whitaker, Andy Cohen, Cut Copy, Brad Whitford

Bill Cosby, Bonnie Raitt

Tom Selleck, Jena Malone, Johnny Marr

Damian Lewis, Steve Coogan, Sheryl Crow, Wanz

Ice-T, Thomas Rhett

Mariah Carey, Malcolm Gladwell, Capital Cities

Billy Crystal, Evan Rachel Wood, Cher Lloyd feat. Skee-Lo

Natalie Portman, Taye Diggs, Nate Bargatze

Rachel Maddow, M.I.A.

Jason Statham, Tom Green, Emeli Sandé

Lucy Liu, Zachary Quinto, Giada De Laurentiis

Simon Baker, Sen. John McCain, The Dismemberment Plan

Harrison Ford, Padma Lakshmi, Big Sean feat. Kid Cudi

Kerry Washington, Jason Schwartzman, chef Flynn McGarry, Amel Larrieux feat. Sky Larrieux

Aziz Ansari, Minka Kelly, The Weeknd

Kate Bosworth, Tim Conway, Chromeo

Hugh Laurie, Celine Dion

Javier Bardem, Eddie Vedder, Pearl Jam

Edward Norton, Judd Apatow, Pearl Jam

Julie Bowen, Mandy Patinkin, Dierks Bentley with Mike McCready & The Roots

Johnny Knoxville, Hailee Steinfeld, Robin Pecknold

Alec Baldwin, Kevin Connolly, Chris Cornell with The Avett Brothers

Keanu Reeves, Benedict Cumberbatch, My Morning Jacket feat. Brittany Howard & Merrill Garbus

Katy Perry, Jessica Seinfeld, Brian Wilson & Jeff Beck

Alan Rickman, Chloë Grace Moretz, Jeff Musial, Ylvis, Cassadee Pope

Miley Cyrus

Sir Paul McCartney, Dylan McDermott

Artie Lange, Tavi Gevinson, Phantogram

Meredith Vieira, Mario Batali

Paul Giamatti, Anthony Mackie, MS MR, Horatio Sanz

Rebel Wilson, Joel Osteen, Lorde

Kevin Nealon, Elizabeth Olsen, The Avett Brothers with Chris Cornell

Julianna Margulies, Michael Sheen, Superchunk

Tina Fey, Goldfrapp, Thundercat

Michael J. Fox, Blake Shelton, Kings of Leon

Joseph Gordon-Levitt, Stephen Merchant, The Avett Brothers

James Spader, Kate Upton, Neal Preston, chef Ilan Hall

Hugh Jackman, Gillian Flynn, "America's Got Talent" winner, Elvis Costello feat. Marisol

Chris Hemsworth, Tony Danza, Jack Johnson

Orlando Bloom, Elvis Costello, World Champion kid golfers

Ben Affleck, Mindy Kaling, Pixies

Scarlett Johansson, Drake, Drake feat. Sampha

Robert De Niro, Amy Sedaris, "America's Got Talent" finalists, Alt-J, Peter Hook

Ricky Gervais, Michael Shannon, MGMT, Simon Townshend

Michelle Pfeiffer, David Cross, Volcano Choir

Steve Harvey, the cast of "Duck Dynasty", Kanye West feat. Charlie Wilson

Katie Couric, Patton Oswalt, Eugenio Derbez, New Politics, Tamar Braxton

Steve Buscemi, Bethenny Frankel, "America's Got Talent" semi-finalists, chef Daniel Humm

Heidi Klum, Mayor Cory Booker, The Julie Ruin, Raheem Devaughn

Michael Strahan, Demi Lovato, Neko Case

Vanessa Hudgens, John Oliver, Earl Sweatshirt

Derek Jeter, Emma Roberts, Jake Owen

Amanda Seyfried, Fran Lebowitz, Brett Eldredge

Jane Fonda, Steve & Monica Ward, The Head and the Heart, Nile Rodgers

Seth Meyers, Lily Collins, 2 Chainz

Bryan Cranston, Common, Miranda Hart, Robin Thicke

Jennifer Aniston, Lenny Kravitz, Goodie Mob feat. CeeLo Green

Tyra Banks, Simon Pegg, Dominique Ansel

Dan Aykroyd, Paula Patton, Brad Paisley, Booker T. Jones

Mark Wahlberg, Poppy Montgomery, The Virgins, J. Mascis

Liev Schreiber, Anthony Anderson, Imagine Dragons

Andy Samberg, Shailene Woodley, Marcine & Nita Lou Webb, New Order

Hugh Jackman, Natasha Lyonne, Frank Pellegrino Jr., Buddy Guy

Howie Mandel, Eliot Spitzer, Kings of Leon, Ronald Isley

Jeff Bridges, Stacy Keibler, Jesse and the Rippers

Ryan Reynolds, Bob Saget, Fall Out Boy, Michael Winslow

Catherine Zeta-Jones, Colin Quinn, Gogol Bordello

Bruce Willis, "Mama" June Shannon, Mayer Hawthorne

Kristen Wiig, Nick Cannon, Adam Ant

Kristin Scott Thomas, Sam Rockwell, Ciara feat. Future

Salma Hayek Pinault, Charlie Day, April Bloomfield, Chrisette Michele

Adam Sandler, Mireille Enos, Eleanor Friedberger

David Spade, Kris Jenner, Mudhoney, Preservation Hall Jazz Band

Jeff Daniels, Nick Swardson, Jeff Musial, Preservation Hall Jazz Band

Jason Statham, Adrian Peterson, Zedd feat. Foxes

Elijah Wood, Grant Bowler, Yeah Yeah Yeahs

Kevin Hart, Olivia Munn, Chvrches

Jerry Seinfeld, Ice Cube

Howard Stern, Alyssa Milano, Anamanaguchi

Adam Levine, Cedric the Entertainer, Ariana Grande feat. Mac Miller

Julia Louis-Dreyfus, Val Kilmer, Nate Bargatze

Governor Chris Christie, Jennette McCurdy, Mario, Benno & Leo Batali

Seth Rogen, Jeffrey Tambor, The Lumineers

Russell Crowe, Sofia Coppola, Jamie King, Kelly Rowland feat. Wiz Khalifa

Neil Patrick Harris, Jim Gaffigan, The-Dream feat. Gary Clark Jr., Bob James & David Sanborn

Christopher Meloni, Cat Deeley, Broken Social Scene feat. Feist

Glenn Close, Dolph Lundgren, Portugal. The Man

Ethan Hawke, Rose Byrne, Bruce Jenner, Savages, Quinn Sullivan

Nathan Lane, Zoë Kravitz, Tomahawk

Paul Walker, Joss Whedon, They Might Be Giants

Julianne Moore, Jesse Tyler Ferguson, Danny Bowien, Boz Scaggs

Dana Carvey, Elisabeth Moss, Bobby McFerrin

Aziz Ansari, Gillian Anderson, J. Cole, P.J. Morton

Colin Farrell, Jaden Smith, "All-Star Celebrity Apprentice" finalists, Ahmir

Zoe Saldana, Chris O'Dowd, De La Soul

Mindy Kaling, Tim McGraw

Julie Bowen, Demi Lovato, The Flaming Lips, Treach

Matt Lauer, Ken Jeong, Phoenix, Bilal

Bradley Cooper, Portia de Rossi, "All-Star Celebrity Apprentice" castoff, Vampire Weekend

LL Cool J, Alyson Hannigan, Benedict Cumberbatch

Jane Lynch, Nikolaj Coster-Waldau, Lady Antebellum

Rachel Maddow, Zachary Quinto, Lady Antebellum

John Krasinski, Eli Roth, Floyd Mayweather Jr., The Breeders

Steve Martin, Edie Brickell, Jenna Fischer, "All-Star Celebrity Apprentice" castoff

Carey Mulligan, Alexander Skarsgard, John Densmore, Eve

Zach Galifianakis, Isla Fisher, George Lois, Icona Pop, Too $hort

Sir Ben Kingsley, Kal Penn, Johnny Marr

Winona Ryder, Marc Maron, Kenny Chesney

Rebel Wilson, Anthony Bourdain, "All-Star Celebrity Apprentice" castoff, Retta

Amy Poehler, Michael Angarano, Iron & Wine

Susan Sarandon, Anthony Mackie, The National

Ricky Gervais, Jessica Paré, Talib Kweli

Eli Manning, Adam Ferrara, Phosphorescent, K-OS

January Jones, Savannah Guthrie, "All-Star Celebrity Apprentice" castoff, Ilan Hall

Tom Cruise, Jordana Brewster, Shuggie Otis

Vince Vaughn, Amy Schumer, Joshua Topolsky, Major Lazer

Bill Cosby, Ashley Tisdale, Sandra Lee

Julianna Margulies, Adam Scott, Jonas Brothers

Keith Richards, Edie Falco, "All-Star Celebrity Apprentice" castoff, Ghostface Killah

Anderson Cooper, Taran Killam, Stuart Edge, Cat Power

Melissa McCarthy, Chris Jericho, Ryan Bingham

Sarah Silverman, Hugh Dancy, Gordon Lightfoot

Tracy Morgan, Andy Cohen, Deerhunter, B.J. Thomas

Alec Baldwin, Emilia Clarke, "All-Star Celebrity Apprentice" castoff, Janelle Monáe

Tyler Perry, Nick Offerman, Thom Filicia, Blake Shelton

Kathie Lee Gifford, James Purefoy, Dido

Ice-T, Chris Hardwick, Little Green Cars

Usher Raymond, Kate Mara, "All-Star Celebrity Apprentice" castoff, Wale feat. Tiara Thomas

Kevin Bacon, Elizabeth Mitchell, Gary Dell'Abate, Sigur Rós

Drew Barrymore, Thandie Newton, Brandi Carlile

Rudy Giuliani, Judd Apatow, Marcus Samuelsson

Selena Gomez, David Steinberg, Pinback

Nicolas Cage, Mike Birbiglia, "All-Star Celebrity Apprentice" castoff, Kip Moore

Justin Timberlake, Hayden Panettiere

Katie Couric, Freddie Highmore, Justin Timberlake

Steve Carell, Abigail Breslin, Justin Timberlake

Charles Barkley, Allison Williams, Clive Davis, Justin Timberlake

Justin Timberlake, Timothy Olyphant, "All-Star Celebrity Apprentice" castoff

Mariah Carey, Billy Eichner, Prince

Tina Fey, Bill Nighy, Bob Mould

Christian Slater, Mia Wasikowska, Jason Aldean

Donald Trump, Rebecca Hall, Jon Glaser, Tyler the Creator

Alan Cumming, Michael Phelps, Kate Upton, Unknown Mortal Orchestra

Michelle Obama, Scarlett Johansson, The Avett Brothers

Stephen Colbert, Anthony Anderson

Don Cheadle, John Oliver, Ke$ha, Keith Sweat

David Spade, Cecily Strong, Method Man, Atlas Genius

Artie Lang, Alison Brie, Tame Impala

Joan Rivers, Josh Charles, Gloriana

Bruce Willis, Molly Shannon, Trinidad Jame$

Steve Harvey, Natalie Morales, Jeff Musial, Kacey Musgraves

Josh Duhamel, Craig Robinson, Christina Tosi, Boyd Tinsley

John Goodman, Carmelo Anthony, Gary Allan

Jason Schwartzman, Keri Russell, Night Beds

Joel McHale, Al Roker, Matt Pond

Whoopi Goldberg, Tavi Gevinson, Tommy Mottola, Kurt Metzger

Justin Bieber, Naomi Campbell, Local Natives

Russell Brand, Katharine McPhee, Jim James

Jason Bateman, Zosia Mamet, Andrea Bocelli

Channing Tatum, Megan Hilty, Tim Ferriss

Jude Law, Mike Tyson, Joshua Topolsky, Bad Religion, Michael Bolton

Lucy Liu, Billy Gardell, Ultraísta

Brian Williams, Max Greenfield, Eric Burdon

Jessica Chastain, Josh Gad, Alan Zweibel, The Joy Formidable

Arnold Schwarzenegger, Maggie Q, Michael Kiwanuka

Jeremy Renner, Hoda Kotb, Jessie Ware

Charlie Sheen, Emmy Rossum, Grace Coddington, Yo La Tengo

Uma Thurman, Tim Gunn, Bobby Collins

David Duchovny, Nicole "Snooki" Polizzi & Jennifer "JWoww" Farley, Nick Kroll

The cast of "30 Rock", John Cale

William H. Macy, Ginnifer Goodwin, chef Rachael Ray

Jeff Bridges, Marlon Wayans, Ian Frazier, Bat for Lashes

Betty White, Jeff Ross, Sky Ferreira

Bill Cosby, Tempestt Bledsoe, Grace Potter

Mayor Michael Bloomberg, NeNe Leakes, T.I.

Fred Armisen, Common, Shae Bradley & Shain Gandee, Lupe Fiasco