Kathy Griffin; Chris Pratt; Big Boi

Regis Philbin; Zedd

Michael Strahan; Jessica Chastain; Conor Maynard

Brian Williams; Morrissey

Josh Brolin; Kathryn Bigelow; Ray Wylie Hubbard

Michael J. Fox; Lena Dunham

Catherine Zeta-Jones; Allison Williams; Jon Spencer Blues Explosion

Charlie Sheen; Phil Simms; José James

Jennifer Lawrence; Alan Zweibel; A$AP Rocky

Kim & Kourtney Kardashian; Buddy Guy

Jeremy Renner; Jack Hanna

Kevin Bacon; Brian Kiley; The Amazing

Melissa McCarthy; David Morrissey; David Byrne & St. Vincent

Sylvester Stallone; Al Gore

Jason Bateman; Alison Brie; Shovels & Rope

Al Pacino; Macklemore & Ryan Lewis

Kevin Spacey; Nick Griffin; Emeli Sandé

Gov. Chris Christie; Joe Flacco; Cody Ray Slaughter

Eric Stonestreet; Christopher “Mad Dog” Russo; Brandon Bennett; Norman, the Bicycle-Riding Dog

Joel McHale; Amy Sedaris; Justin Shandor

Sally Field; John Harbaugh; Shawn Klush

Pauley Perrette; Jake Johannsen; Ben Portsmouth

Bill O'Reilly; S.I. Swimsuit Models; The Avett Brothers

Bruce Willis; Kate Upton; Little Big Town

Staff Sgt. Clinton Romesha; AnnaSophia Robb; Robert DeLong

Jerry Seinfeld; Dave Grohl & the Sound City Players with Stevie Nicks

Helen Hunt; Jeff Caldwell; The Maccabees

David Spade; Kenny Licklider; Aaron Neville

Michelle Williams; Chris O'Donnell; von Grey

Hugh Jackman; Zosia Mamet; The Americans

Johnny Depp; Bill Carter and The Blame

Luke Wilson; Dan Mintz; Imagine Dragons

Alec Baldwin; Emmylou Harris with Rodney Crowell

Joan Rivers; Jimmie Johnson; Kendrick Lamar

Tina Fey; Jesse Tyler Ferguson; Solange

Michael Bloomberg; Depeche Mode

Steve Carell; Emilia Clarke; Josh Ritter

Jim Carrey; Richard Thompson

Gerard Butler; Elizabeth Cook

Seth Meyers; Demetri Martin; Dropkick Murphys

Selena Gomez; Bob Sarlatte; Killer Mike

Bill Cosby; Mikaela Shiffrin; Garbage

Eva Mendes; Andy Hendrickson; The Airborne Toxic Event

James Franco; Andrew Borracchini; Ed Sheeran

Brian Williams; Pegi Young & The Survivors

Gary Gulman; Wavves

Shia LaBeouf; Jeff Altman; The Band Perry

Regis Philbin; Broadway musical “Rodgers & Hammerstein's Cinderella”

Louis C.K.; Rachel Maddow; The Flaming Lips

Martin Short; Tyler, the Creator

Chelsea Handler; Ross Bennett; Yeah Yeah Yeahs

Lindsay Lohan; Pete Lee; Gary Clark Jr.

Harrison Ford; Rita Wilson; Jake Bugg

Matthew McConaughey; Ryan Lochte; Steve Earle & The Dukes (& Duchess)

Steve Martin; Edie Brickell; Jenna Fischer

Kate Hudson; A.J. Clemente; Selena Gomez

Jim Parsons; Snoop Lion

Jon Hamm; Ricky Jay; The So So Glos

Mindy Kaling; Nada Bakos; Ben Harper with Charlie Musselwhite

Dr. Phil McGraw; Chris O'Dowd; Phoenix

Tobey Maguire; Tom Odell

Paris Hilton; Miriam Tucker; Atlas Genius

Nathan Lane; Joe Matarese; Kacey Musgraves

John Krasinski; Kerry Washington; James Blake

Zooey Deschanel; Jim Gaffigan; Pistol Annies; Todd Rundgren

Michael Strahan; Alyson Hannigan; Natalie Maines

Jack Hanna; Benedict Cumberbatch

Chris Pine; Tom Dreesen; She & Him

Mark Harmon; Amy Schumer; Luke Bryan

Tom Hanks; cast of “Pippin”

Ed Helms; Hoda Kotb; Brad Paisley

Barbara Walters; Jesse Eisenberg; MS MR

Will Arnett; Trevor Noah; Kurt Vile

Will Smith; The National

Jason Bateman; Piedmont bird callers; John Fogerty

Woody Harrelson; Tommy Johnagin; John Fogerty with Dawes

Neil Patrick Harris; Tony Kanaan; Frank Turner

Nathan Fillion; John Oliver; Local Natives

Johnny Galecki; John Mellencamp & Stephen King; Queens of the Stone Age

Vince Vaughn; Andy Kindler; Queens of the Stone Age

Russell Brand; Michael Shannon; Haim

Dana Carvey; Nick Robinson; cast of “Matilda”

Tom Brokaw; Darlene Love

Harry Connick, Jr.; Dylan Moran

Bill O'Reilly; Greta Gerwig; Quadron

Don Rickles; Nick Cannon; Tom Keifer

Jeff Daniels; Ken Jeong; Jim James

John Travolta; Chris DiStefano; Japandroids

Melissa McCarthy; Idris Elba; Dale Watson and His Lone Stars

Channing Tatum; Tim DeChristopher; Fitz and The Tantrums

Jamie Foxx; Patrick Kane; Wale

Johnny Depp; Marc Maron; Dawes

Michael Cera; Martha Stewart; Ra Ra Riot

Adam Sandler; Joseph Arthur

Salma Hayek Pinault; Tony Hale; Houndmouth

Kevin James; Shaun White; Darius Rucker

Bruce Willis; Bud Selig; Valerie Simpson

Bill Maher; Poppy Montgomery; Pokey LaFarge

Brian Williams; Court Yard Hounds

Liev Schreiber; Adam Newman; Cold War Kids

Cate Blanchett; Aisha Tyler; Franz Ferdinand

Hugh Jackman; Lisa Kudrow; Jason Isbell

Jason Sudeikis; Edward Sharpe & The Magnetic Zeros

Regis Philbin; Terry Fator

Denzel Washington; James McCartney

Bryan Cranston; Amanda Seyfried; Michael Franti & Spearhead

Matt Damon; Hanni El Khatib

Oprah Winfrey; Paul Rudd

Olivia Wilde; Dean Norris; John Mayer

Louis C.K.; Hugh Evans; John Legend

Tina Fey; Valerie June

Serena Williams; Sean Donnelly; MGMT

Patrick Dempsey; Amy Sedaris; Laura Marling

Anderson Cooper; Olivia Munn; Robert Randolph & The Family Band

Staff Sgt. Ty Carter; Hayden Panettiere; In the Valley Below

Bill Murray; Lenny Kravitz & Gladys Knight

Jake Gyllenhaal; Julie Chen; The Dodos

Tim Robbins; Herm Edwards; Passion Pit

Queen Latifah; Jake Johnson; TV on the Radio

Arsenio Hall; Dan Naturman; Laura Mvula

Ricky Gervais; Rahm Emanuel; Janelle Monae

Billy Crystal; Sheryl Crow

Joseph Gordon-Levitt; Keith Olbermann; Keith Urban

Alec Baldwin; Toni Collette

Dr. Phil McGraw; Tom Dreesen

President Bill Clinton; Tired Pony

Cher

Robin Williams; Lizzy Caplan; Icona Pop

Bono; Johnny Galecki; Kings of Leon

Steve Martin; Kathleen Madigan; The Kruger Brothers with Steve Martin

Sean Hayes; Sting

Sarah Michelle Gellar; Nick Offerman; First Aid Kit

Kerry Washington; Ariel Tweto; Yoko Ono Plastic Ono Band

Brian Williams; a performance from the film “Muscle Shoals”

Tom Selleck; Michael Somerville; Albert Hammond Jr.

Tom Hanks; Two Door Cinema Club

Seth Meyers; Michael Fassbender; Amos Lee

Lucy Liu; Mark Jacobson; The Weeknd

Jack Hanna; Kunal Nayyar

Michael Strahan; Simon Amstell; Cage the Elephant

Ray Romano; James Franco

Sylvester Stallone; Anna Faris; Deltron 3030

Bill O'Reilly; The Head and the Heart

Donald Trump; Selena Gomez

Barbara Walters; Steve Young; White Denim

Charles Barkley; Lindsey Vonn; King Krule

Rob Lowe; Scott Dixon; Alan Jackson

Will Arnett; Clive Davis; The Avett Brothers

Harrison Ford; Holy Ghost!

Morgan Freeman; Brian Regan; Frightened Rabbit

Woody Harrelson; David Ortiz; The Wanted

Kathy Griffin; Bruce McCall; J. Cole

Natalie Portman; Chris Elliott; James Blunt

Kelly Ripa; Cobie Smulders; Gary Clark Jr.

Tom Brokaw; Rhys Darby; Black Joe Lewis

Julianna Margulies; Gen. Ray Odierno; Moon Taxi

Michael J. Fox; Lorde

Samuel L. Jackson; Chris Matthews

Claire Danes; Will Forte; Metric

Connie Britton; Lady Antebellum

Vince Vaughn; Jimmie Johnson; Luscious Jackson

Anderson Cooper; Jesse Tyler Ferguson; The Neighbourhood

Jennifer Lawrence; Taraji P. Henson

Jonah Hill; Chiwetel Ejiofor; J. Roddy Walston and The Business

Howard Stern; Adrienne Iapalucci

Josh Hutcherson; Chris “Mad Dog” Russo; Sky Ferreira

Martha Stewart; Pitbull

John Goodman; Kevin McCaffrey; Iggy Azalea with T.I.

Stephen Colbert; Sir Ian McKellen; Chvrches

Billy Crystal; Julie Chen; ZZ Ward

Emma Thompson; Andy Cohen; Nick Lowe

Julia Roberts; Glen Hansard

Regis Philbin; John Witherspoon; Seasick Steve

Will Ferrell; Chris Cornell feat. Joy Williams

Paul Rudd; Cristin Milioti; Alt-J

Ben Stiller; Shannon Eis; Brett Dennen

Steve Carell; The Saint Johns

Kristen Wiig; Darlene Love