News anchor Brian Williams; TV personality Paula Abdul.
Singer Tim McGraw; NBA player Shaquille O'Neal; Keri Hilson performs.
Actress Jennifer Connelly; talk show host Dr. Mehmet Oz; Justin Townes Earle performs.
Actor Seth Rogen; actress Beau Garrett; the Walkmen perform.
TV host Regis Philbin; comic Hannibal Buress; No Age perform.
Comic Bill Cosby; reality TV star Nicole 'Snooki' Polizzi presents the top 10 list.
Actor Vince Vaughn; reality TV stars Mike Wolfe and Frank Fritz; Cage the Elephant performs.
Actor Kevin James; actress Olivia Munn; Blake Shelton performs.
Gregg Allman performs.
Comics Joan Rivers and Jeff Caldwell; Wintersleep performs.
Animal handler Jack Hanna; musician Steven Tyler.
Actress Betty White; reality TV stars Kim and Kourtney Kardashian; The Script performs.
Actor Martin Short; Darius Rucker performs.
Actress Kaley Cuoco; TV host Piers Morgan; Wanda Jackson and Jack White perform.
Actor Nathan Lane; comic Mike Palascak; Esperanza Spalding performs.
Musician Justin Bieber; actress Pauley Perrette; Best Coast performs.
Actor Matthew Perry; actor Chris Elliott; former Gov. Mitt Romney (R-Mass.); The National performs.
Actress Kate Walsh; comic Jim Gaffigan; Boxer Rebellion performs.
Radio host Howard Stern; Naughty by Nature performs.
Musician Justin Bieber presents the top 10 list; Martha Stewart; Robert Plant performs.
Martin Lawrence
Adam Sandler, Chris Colfer, Gang of Four
Elton John, Ty Burrell, Elton John & Leon Russell
Bryan Ferry
Ed Helms, Ted Alexandro, Steel Magnolia
A Top Ten List with 10 Sports Illustrated swimsuit models, Theophilus London
The 2011 Sports Illustrated swimsuit issue cover model, Josh Groban
Amos Lee
Paris Hilton, Scissor Sisters
David Spade, Andy Kindler, Lukas Nelson and Promise of the Real
Donald Rumsfeld, Adele
Amy Poehler
Rainn Wilson, Henry "Hank" Aaron, the Mountain Goats
Sen. Rand Paul, Bright Eyes
Matthew Morrison, Jeff Altman
Brian Williams, Trey Parker & Matt Stone, Zac Brown Band
Amanda Seyfried, B.J. Novak, a performance by the Broadway cast of "Spider-Man: Turn Off the Dark"
Donald Trump, Vanessa Hudgens, Oh Land
Robin Williams, Judy Greer
Charles Barkley, Sarah Vowell, Cold War Kids
Charles Barkley, Cold War Kids
Bradley Cooper, Mindy Kaling, Bob Geldof
Steve Martin, Selena Gomez
Dana Carvey, Dr. Michio Kaku, British Sea Power
Katie Couric, The Pains of Being Pure at Heart
Ben Stiller, Dario Franchitti, the Strokes
Jack Hanna, Danny McBride
Regis Philbin, Snoop Dogg
Norm MacDonald, C.C. Sabathia, Willie Nelson, Norah Jones, Wynton Marsalis
Chris Rock, Ellen Page, Funeral Party
James Franco, Royal Bangs
TBA
Jennifer Garner, Jamie Oliver, Robbie Robertson
Don Rickles, Eva Longoria
Alec Baldwin, Wiz Khalifa
Ricky Gervais, Bjorn Lomborg, Foo Fighters
Courteney Cox, Aziz Ansari, Alison Krauss & Union Station featuring Jerry Douglas
Seth Meyers, Carmelo Anthony, TV on the Radio
Tina Fey, Tommy Johnagin, Chris Cornell
TV-show host Bill Maher; actress Cote de Pablo; Lupe Fiasco performs.
Actor Will Ferrell; Twilight Singers perform.
Actress Kate Hudson; sportscaster Rich Eisen; Emmylou Harris performs.
TV host Phil McGraw; actor Chris Hemsworth; the Broadway cast of "Catch Me if You Can" performs.
Actor John Krasinski; comic Brian Kiley; Steve Earle performs.
Tracy Morgan, Rex Ryan
Caroline Kennedy, Ty Burrell
Brian Williams, Rick Harrison, a Top Ten List presented by Betty White
Jodie Foster, Tom Dreesen, Neon Trees
Mike Birbiglia, "The Human Fuse" Brian Miser, Brother
Albert Brooks, Kristen Wiig
Mark Harmon, Chris Morgan, Hugo
Keith Olbermann, Chaz Bono, Ray LaMontagne
Jim Parsons, Manchester Orchestra
Nick Griffin, Okkervil River
Julianna Margulies, Andy Cohen, White Lies
Martin Short, Melissa McCarthy, Tinie Tempah
Keith Olbermann, Julie Bowen, Ben Harper
Kelly Ripa, Jennifer Lawrence, a performance by the Broadway cast of "How to Succeed in Business Without Really Trying"
Tracy Morgan, Jake Johannsen, the Airborne Toxic Event
Musician Lady Gaga; actor Eric Stonestreet; the Vaccines perform.
Actor Ewan McGregor; journalist Scott Pelley; Brad Paisley performs.
Piedmont Bird Callers perform; actor Kevin Bacon; Augustana performs.
Actor Ray Romano; Arctic Monkeys perform.
Meredith Vieira, Indianapolis 500 winner Dan Wheldon, Drum Solo Week kicks off with Anton Fig
Kyle Chandler, Kathy Griffin, Sheila E.
Jon Cryer, Roy Haynes
Neil Patrick Harris, Mike Birbiglia, Neil Peart
Adm. Michael Mullen, a Top Ten List presented by Betty White, Black Joe Lewis & the Honeybears
Ryan Reynolds, a performance by the Broadway cast of "Anything Goes"
Jim Carrey, Rosie Huntington-Whiteley, Todd Rundgren
Samuel L. Jackson, Texas Ranger Josh Hamilton, Jennifer Hudson
Cameron Diaz, horse whisperer Buck Brannaman, Eddie Vedder
Jason Bateman, Amy Sedaris, a Top Ten List presented by Keith Olbermann, Drive-By Truckers
Kevin James, pet fashion designer Ada Nieves, Beady Eye
Jason Segel, Tim Harmston, Noah and the Whale
Shia LaBeouf, Bert Kreischer, Dawes
Tom Hanks, Sleepy Man Banjo Boys
Patrick Dempsey, Marty Stuart
Julia Roberts, Cake
Emma Watson, George Lopez, a Top Ten List presented by Chris Evans, Incubus
Roseanne Barr, Tom Felton, Blake Shelton
Ryan Gosling, Gomez
Kyra Sedgwick, Tim Harmston, Nikki Jean
Bono & the Edge, a performance from "Spider-Man: Turn Off the Dark"
Steve Carell, the Del McCoury Band, the Preservation Hall Jazz Band
Jeremy Piven, Cee-Lo Green
Harrison Ford, Joe Wong, Porcelain Black
Brian Williams, Tim Robbins & the Rogues Gallery Band
Julianne Moore, Eels
Craig Ferguson, Anna Calvi
Louis C.K., Fountains of Wayne
James Franco, Dianna Agron, Christina Perri
Ricky Gervais, Cat Deeley, Explosions in the Sky
Emma Stone, Alan Mulally, Blink 182
Colin Farrell, Karen Rontowski, Typhoon
Denis Leary, Elizabeth Cook, Drum Solo Week II kicks off with Tony Royster Jr.
Rachel Maddow, Gavin Harrison
Ashton Kutcher, Stewart Copeland
Paul Rudd, Bill Burr, Dennis Chambers
Actor Jason Sudeikis; World Food Programme director Josette Sheeran; The Jim Jones Revue performs.
Actor Alec Baldwin; former professional football player Joe Namath; Lenny Kravitz performs.
Actress Aubrey Plaza; Thurston Moore performs.
Actress Julianna Margulies; comic Joe Wong; Lady Antebellum performs.
Kim, Kourtney & Khloe Kardashian, Michael Emerson, the Jim Jones Revue
Sgt. 1st Class Leroy Petry, Sarah Jessica Parker
Michael J. Fox, John Doe
Ted Danson
Jonah Hill, Paula Abdul, Coldplay
Taylor Lautner, Minka Kelly, Wilco
Sofia Vergara, Chris Cornell
Nathan Fillion, Larry Miller, the Jayhawks
Seth Rogen, Poppy Montgomery, Fleet Foxes
Jack Hanna, Anna Faris
Anderson Cooper, Nick Offerman, the Knux
Kaley Cuoco, Skipper Bivins & Trent Jackson, Death Cab for Cutie
Karen Rontowski, Anne-Sophie Mutter
Brian Williams, Sting
Hugh Jackman, Feist
George Clooney, Mastodon
Caroline Kennedy, dock diving dogs, the Joy Formidable
Bryan Cranston, Jeff Altman, Garland Jeffreys
Tracy Morgan, Mike Golic & Mike Greenburg
Matthew Broderick, horse wrangler Erin Bolster and her horse Tonk, Hunter Hayes
Bill Clinton, Deer Tick
Bill O'Reilly, Martina McBride
Artie Lange, Eddie Brill, Beirut
Coming soon...Salma Hayek, Louis Zamperini, Jane's Addiction
Eddie Murphy, Jane Levy, Mayer Hawthorne
Justin Timberlake, the Civil Wars
Johnny Depp, Foster the People
Tom Brokaw, the Head & the Heart
Jesse Eisenberg, Puscifer
Ben Stiller, Whitney Cummings
Condoleezza Rice, Amy Sedaris
Mark Harmon, Eli Young Band
Bill Cosby, Jason Isbell and the 400 Unit
Melissa McCarthy, Anthony Bourdain, Joan Baez & Kris Kristofferson
Robert Pattinson, Annie Leibovitz
Adam Sandler, Peter Gabriel
Katie Holmes, Noel Gallagher\'s High Flying Birds
Steve Martin, Felicity Jones
Jason Segel, Jamie Oliver
Bill Maher, Nikki Reed, Drake
Jerry Seinfeld, Lykke Li
Regis Philbin, John Fogerty
Herman Cain, Brian Regan, Grouplove
Ty Burrell, Needtobreathe
Amy Sedaris
Justin Bieber, Hugh Fink
Jonah Hill; Kristen Johnston; Ryan Adams
Matt Damon; Shelby Lynne
Jessica Biel; Tom Dreesen; The Black Keys
Charlize Theron; Kevin Nealon; Blitzen Trapper
Hugh Fink; Young Jeezy
Scarlett Johansson, Julie Chen
Barbara Walters, Bill Hader, Wild Flag
Robert Downey Jr., Lisa Lampanelli
Tom Hanks, My Morning Jacket
Jude Law, Bob Sarlatte, Gary Clark Jr.
Tom Cruise, Anthony Hamilton
Harry Connick Jr., Scott Van Pelt, Mariachi El Bronx
Jon Huntsman, J. Cole
Childish Gambino
Jay Thomas, Darlene Love
