19x1 - Will Arnett, Lisa Lampanelli, Guided by Voices

January 3, 2012

19x2 - Brian Williams, WU LYF

January 4, 2012

19x3 - Tina Fey, Jeremy Irvine, Barr Brothers

January 5, 2012

Tina Fey Vandalizes Dave's Car. Jeremy Irvine tells Dave about his quick rise to stardom in "War Horse."

19x4 - Kristen Bell, Dan Naturman, Blind Pilot

January 6, 2012

Dave welcomes actress Kristen Bell and musical guest Blind Pilot.

19x5 - Mark Wahlberg, Heather Morris, Snow Patrol

January 9, 2012

Dave welcomes actor Mark Wahlberg, actress Heather Morris, and musical guest Snow Patrol. "Top Ten Ways Kim Jong Un Celebrated His Birthday". The Glee star turns filmmaker with a special video for Dave.

19x6 - Kate Beckinsale, Marv Albert, The Little Willies

January 10, 2012

Dave welcomes Kate Beckinsale, Bloopers with Marv Albert, and music from The Little Willies.

19x8 - Sen. John McCain, Johnny Winter

January 12, 2012

Dave welcomes Senator John McCain and musical guest Johnny Winter.

19x9 - Viggo Mortensen, Dennis Regan, Tony Bennett

January 13, 2012

19x10 - Simon Baker, Elizabeth Banks, Seal

January 16, 2012

19x11 - Ricky Gervais, Jessica Chastain, Kathleen Edwards

January 17, 2012

Dave welcomes actor Ricky Gervais, actress Jessica Chastain, and musical guest Kathleen Edwards.

19x12 - Marg Helgenberger, Michael Fassbender, Ellie Goulding

January 18, 2012

Dave welcomes actress Marg Helgenberger from the CBS drama series "CSI: Crime Scene Investigation," actor Michael Fassbender, and musical guest Ellie Goulding.

19x13 - Kathy Griffin, Simon Helberg, Joseph Arthur

January 19, 2012

Dave welcomes comedian Kathy Griffin, actor Simon Helberg from the CBS comedy series "The Big Bang Theory," and musical guest Joseph Aurthur.

19x14 - Dana Carvey, Jon Fisch, Los Campesinos!

January 20, 2012

Dave welcomes comedian Dana Carvey, Jon Fisch and musical guest Los Campesinos! performs.

19x15 - Jennifer Lopez, Rob Schneider, James McCartney

January 30, 2012

Dave welcomes actress Jennifer Lopez, actor Rob Schneider form the CBS comedy series "Rob!", and musical guest James McCartney.

19x16 - Bill Murray, Girls' Generation

January 31, 2012

Dave welcomes actor Bill Murray and musical guest Girls' Generation.

19x17 - Howard Stern, The Airborne Toxic Event

February 1, 2012

Dave welcomes radio host Howard Stern and musical guest The Airborne Toxic Event.

19x18 - Woody Harrelson, Stephen Merchant, Lana Del Rey

February 2, 2012

19x19 - Michelle Williams, Jake Johannsen, Ziggy Marley

February 3, 2012

Dave welcomes actress Michelle Williams, comic Jake Johannsen and musical guest Ziggy Marley. Top Ten Super Bowl Fun Facts. Why wasn't Michelle paying attention to her Academy Awards nominations announcement?

19x20 - Eli Manning, Sarah Michelle Gellar, Die Antwoord

February 6, 2012

Highlights from Biff's big day at the Super Bowl in Indianapolis. Dave's "favorite" Manning talks about his brother Peyton's football future. Sarah embarrasses herself in front of a group of punk kids. The South African rap-rave group performs "I Fink U Freeky."

19x21 - Denzel Washington, The Fray

February 7, 2012

Dave welcomes actor Denzel Washington and musical guest The Fray.

19x22 - Ryan Reynolds, Ellie Kemper, Dierks Bentley

February 8, 2012

Dave welcomes actor Ryan Reynolds, actress Ellie Kemper, and musical guest Dierks Bentley. Before "The Office," there was "The Man Under The Stairs."

19x23 - Nicolas Cage, Michelle Dockery, The Kills

February 9, 2012

Dave welcomes actor Nicolas Cage, actress Michelle Dockery, A Top Ten List presented by Foo Fighters, and musical guest The Kills. Top Ten Interesting Facts About The GrammyAwards. Nicolas Cage tells how he and Charlie Sheen were nearly arrested for making trouble on a plane. Is Nicolas Cage a vampire? The "Ghost Rider" star addresses the rumors sweeping the Internet. Dave welcomes Michelle Dockery, star of the hit PBS series, "Downton Abbey."

19x24 - David Spade, Betty Wright

February 10, 2012

Dave welcomes actor David Spade from the CBS comedy series "Rules Of Engagement" and musical guest Betty Wright.

19x25 - Reese Witherspoon, Michael Weatherly, Top Ten by Sports Illustrated Swimsuit models, Kasabian

February 13, 2012

Dave welcomes actress Reese Witherspoon, a Top Ten List with 10 of the 2012 Sports Illustrated Swimsuit models and the reveal of the 2012 cover model, actor Michael Weatherly from the CBS drama series "NCIS", and musical guests Kasabian. Top Ten Reasons This Year's 'Sports Illustrated' Swimsuit Issue Is The Best One Ever.

19x26 - Viola Davis, the 2012 Sports Illustrated Swimsuit cover model, Mark Ronson, Erykah Badu, The Dap-Kings, Zigaboo Modeliste

February 14, 2012

Dave welcomes actress Viola Davis, Sports Illustrated Swimsuit Issue Cover Model Kate Upton, and musical guests Mark Ronson and Erykah Badu.

19x27 - Jon Stewart, American Bagging Champion Stephanie Teteak, Yelawolf with Kid Rock

February 15, 2012

Dave welcomes TV show host Jon Stewart, American Bagging Champion Stephanie Teteak, and musical guests Yelawolf and Kid Rock.

19x28 - Joan Rivers, Andrew Lincoln, Jason Mraz

February 16, 2012

Dave welcomes comedian Joan Rivers, actor Andrew Lincoln, and musical guest Jason Mraz.

19x29 - Kristen Wiig, Mike Birbiglia, Butch Walker and the Black Widows

February 17, 2012

The Academy Award nominee Kristen Wiig takes a tumble in front of pretty boy Brad Pitt.

19x30 - Jack Hanna, Jesse Tyler Ferguson

February 20, 2012

Dave welcomes animal expert "Jungle" Jack Hanna and actor Jesse Tyler Ferguson.

19x31 - Alec Baldwin, Eric Hutchinson

February 21, 2012

Dave welcomes actor Alec Baldwin and musical guest Eric Hutchinson. Alec Baldwin talks about losing weight by going sugar free while Dave extols the virtues of Mexican Coke.

19x32 - Paul Rudd, John Witherspoon, Heartless Bastards

February 22, 2012

19x33 - Kristin Chenoweth, Joe Scarborough, K'naan featuring Nelly Furtado

February 23, 2012

What happened to Kristin Chenoweth's formerly perky eyes? Why is Kristin Chenoweth wearing sunglasses? Find out when she tells Dave about the problem with her eyelash extensions.

19x34 - Matthew Broderick, Nick Griffin, We Are Augustines

February 24, 2012

Dave welcomes actor Matthew Broderick, comedian Nick Griffin, and musical guests We Are Augustines.

19x35 - Ed Helms, Dan Patrick, Lyle Lovett

February 27, 2012

Dave welcomes actor Ed Helms, sportscaster Dan Patrick, and musical guest Lyle Lovett.

19x36 - Nathan Lane, Pauley Perrette, Estelle

February 28, 2012

Dave welcomes actor Nathan Lane, actress Pauley Perrette from the CBS drama series "NCIS" and musical guest Estelle.

19x37 - Neil Patrick Harris, Taylor Kitsch, Robert Glasper Experiment featuring Lupe Fiasco & Bilal

February 29, 2012

Dave and Neil Patrick Harris have an awkward green room encounter. The Late Show cue card takes you into the weird world of candle-making. Top Ten Frequently Asked Questions About Leap Year. After years of speculation, Neil reveals the big "How I Met Your Mother" secret. The "John Carter" star runs into some trouble on his way to work in the Philippines. The Robert Glasper Experiment featuring Lupe Fiasco and Bilal perform "Always Shine" from the CD, "Black Radio."

19x38 - Jon Hamm, Ted Alexandro, White Rabbits

March 1, 2012

19x39 - Will Ferrell, Jon Bernthal

March 12, 2012

Dave welcomes actor Will Ferrell and actor Jon Bernthal.

19x40 - Amanda Peet, Nick Offerman, Top Ten by Cee-Lo Green, The Chieftains with the Low Anthem

March 13, 2012

Dave welcomes actress Amanda Peet and actor Nick Offerman. Musical guests The Chieftains with Low Anthem and a Top Ten List presented by musician Cee Lo Green.

19x41 - Martin Short, The Ting Tings

March 14, 2012

Dave welcomes actor Martin Short and musical guests The Ting Tings. Martin upsets a famous female broadcaster and her husband (but it's not Connie Chung and Maury Povich).

19x42 - Michelle Obama, Esperanza Spalding

March 19, 2012

Dave welcomes First Lady Michelle Obama and musical guest Esperanza Spalding.

19x43 - Jennifer Lawrence, Gail Collins, The Shins

March 20, 2012

Dave welcomes actress Jennifer Lawrence, journalist/author Gail Collins and musical guests The Shins. "Hunger Games" star Jennifer Lawrence tells Dave how she hates watching herself on the big screen.

19x44 - Debra Messing, Josh Hutcherson, Oberhofer

March 21, 2012

Dave welcomes actress Debra Messing, actor Josh Hutcherson, and musical guests Oberhofer. The "Smash" star discovers a lot of fake Debra Messings on Twitter.

19x45 - Rachel Maddow, Timothy Olyphant, Train

March 26, 2012

Dave welcomes journalist Rachel Maddow, actor Timothy Olyphant, and musical guests Train.

19x46 - Jason Sudeikis, Lionel Richie, Jason Aldean

March 27, 2012

Dave welcomes actor Jason Sudeikis, musician Lionel Richie, and musical guests Lionel Richie with Jason Aldean. A lesson in bad parenting: Jason Sudeikis recalls how his Dad once took his ticket to a Final Four game and invited a friend instead. Jason Sudeikis shows Dave a special bat he received from Kansas City Royal and Hall of Famer George Brett.

19x47 - Chris Elliott, Mohamed Nasheed, Justin Townes Earle

March 28, 2012

Dave welcomes actor/comedian Chris Elliott, former President of the Maldives/climate change activist Mohamed Nasheed, and musical guest Justin Townes Earle.

19x48 - Tracy Morgan, Jim Rome, The Broadway musical 'Once'

March 29, 2012

Dave welcomes actor/comedian Tracy Morgan, sportscaster Jim Rome, and a performance from the Broadway musical “Once.”

19x49 - Megan Mullally, Joe Wong, Band of Skulls

March 30, 2012

Dave welcomes actress Megan Mullally, comedian Joe Wong, and musical guest Band of Skulls.

19x50 - Keith Olbermann, Allison Williams, Lukas Nelson & Promise of the Real

April 3, 2012

Dave welcomes talk show host Keith Olbermann, actress/singer Allison Williams, and musical guests Lukas Nelson & Promise of the Real. Top Ten Questions Received by the Marshmallow Peeps Hotline. Keith Olbermann addresses allegations surrounding his departure from Current TV. Allison Williams, star of Girls, talks about having news anchor Brian Williams as her dad.

19x51 - Kiefer Sutherland, Eugene Levy, The Punch Brothers

April 4, 2012

Dave welcomes actor Kiefer Sutherland, actor Eugene Levy, and musical guests The Punch Brothers. Top Ten Sneezes. Kiefer tries to keep up with his energetic grandkids. Eugene, Paul Shaffer and Martin Short form a Rat Pack of old Jewish guys.

19x52 - Ricky Gervais, Cobie Smulders, Tennis

April 9, 2012

Biff Henderson hangs with Jeter, Reggie and more at NY Yankees Spring Training. Ricky Gervais brings Dave an age-appropriate gift for his upcoming birthday. Cobie Smulders worked in Europe as a model when she was 17, but didn't party. True or false?

19x53 - Sean Hayes, Shooter Jennings

April 10, 2012

Dave welcomes Masters Champ Bubba Watson, actor Sean Hayes and musical guest Shooter Jennings. Bubba Watson dons the coveted green jacket and talks "Bubba Golf" with Dave. Dave's ready for Sean Hayes' interview, but is Sean Hayes ready for Dave?

19x54 - Magic Johnson, Larry Bird, Jim Gaffigan, Kaiser Chiefs

April 11, 2012

Dave welcomes Basketball legends Magic Johnson and Larry Bird, comedian Jim Gaffigan, and musical guests Kaiser Chiefs. They were competitors on the court, but how did Magic Johnson and Larry Bird get along off the court?

19x55 - Billy Crystal, Alabama Shakes

April 12, 2012

Dave welcomes actor Billy Crystal and musical guests Alabama Shakes. In celebration of Dave's 65th birthday, Billy Crystal shares a special video he created for the occasion. Billy Crystal shares his great old showbiz story about comedian Red Foxx.

19x56 - Julia Louis-Dreyfus, Keith Alberstadt, Bonnie Raitt

April 13, 2012

Dave welcomes actress Julia Louis-Dreyfus, comedian Keith Alberstadt, and musical guest Bonnie Raitt. She couldn't actually get close to First Lady Michelle Obama, but Julia still got a picture with her.

19x57 - Jason Segel, Zach Wahls, Fun

April 23, 2012

Dave welcomes Actor Jason Segel from the CBS comedy series 'How I Met Your Mother,' author Zach Wahls, musical guests Fun, and a Top Ten List presented by Chicago White Sox perfect game pitcher Philip Humber.