Late Show with David Letterman — Season 20

Comic Kathy Griffin; from "Zero Dark Thirty", actor Chris Pratt; Big Boi performs.

TV personality Regis Philbin; musical guest Zedd.

From "30 Rock", actor Tracy Morgan; sportscaster Marv Albert; musical guests Everest.

Talk show host Michael Strahan; from "Zero Dark Thirty", actress Jessica Chastain; musical guest Conor Maynard.

News anchor Brian Williams; musical guest Morrissey.

From "Gangster Squad", actor Josh Brolin; from "Zero Dark Thirty", director Kathryn Bigelow; musical guest Ray Wylie Hubbard.

Actor Michael J. Fox; from "Girls", actress Lena Dunham.

From "Broken City", actress Catherine Zeta-Jones; from "Girls", actress Allison Williams; musical guests Jon Spencer Blues Explosion.

From "Anger Management", actor Charlie Sheen; CBS Sports commentator and former NFL quarterback Phil Simms; musical guest José James.

Actress Jennifer Lawrence; author Alan Zweibel; musical guest A$AP Rocky.

Reality TV personalities Kim & Kourtney Kardashian; musical guest Buddy Guy.

From "Hansel & Gretel: Witch Hunters", actor Jeremy Renner; animal expert Jack Hanna.

From "The Following", actor Kevin Bacon; comic Brian Kiley; musical guests The Amazing.

From "Mike & Molly", actress Melissa McCarthy; from "The Walking Dead", actor David Morrissey; musical guests David Byrne & St. Vincent.

From "Bullet to the Head", actor Sylvester Stallone; former U.S. Vice President Al Gore.

From "Identity Thief", actor Jason Bateman; from "Community", actress Alison Brie; musical guests Shovels & Rope.

Fom "Stand Up Guys", actor Al Pacino; musical guests Macklemore & Ryan Lewis.

From "House of Cards", actor Kevin Spacey; comic Nick Griffin; musical guest Emeli Sandé.

New Jersey Governor Chris Christie; Super Bowl MVP Joe Flacco; a performance by Elvis tribute artist Cody Ray Slaughter.

From "Modern Family", actor Eric Stonestreet; Trick: Norman will ride a scooter; from Sirius XM Radio, Chris "Mad Dog" Russo; a performance by Elvis tribute artist Brandon Bennett.

From "Community", actor and TV host Joel McHale; actress and comedienne Amy Sedaris; a performance by Elvis tribute artist Justin Shandor.

Actress Sally Field; Baltimore Ravens' John Harbaugh; a performance by Elvis tribute artist Shawn Klush.

From "NCIS", actress Pauley Perrette; comedian Jake Johannsen; a performance by Elvis tribute artist Ben Portsmouth.

Talk show host Bill O'Reilly; a Top Ten List presented by ten 2013 Sports Illustrated Swimsuit models and the 2013 S.I. Swimsuit cover model reveal; musical guests The Avett Brothers.

From "A Good Day to Die Hard", actor Bruce Willis; 2013 Sports Illustrated Swimsuit cover model Kate Upton; musical guests Little Big Town.

Medal of Honor recipient Staff Sgt. Clinton Romesha; from "The Carrie Diaries", actress AnnaSophia Robb; musical guest Robert DeLong. Quvenzhané Wallis preempted.

Comic Jerry Seinfeld; musician Dave Grohl; musical guests Dave Grohl & the Sound City Players with Stevie Nicks.

From "Decoding Annie Parker", actress Helen Hunt; comic Jeff Caldwell; musical guests The Maccabees.

From "Rules of Engagement", actor and comedian David Spade; dog trainer/reality TV personality Kenny Licklider; musical guest Aaron Neville.

From "Oz the Great and Powerful", actress Michelle Williams; from "NCIS: Los Angeles", actor Chris O'Donnell; musical guests von Grey.

Actor Hugh Jackman; from "Girls", actress Zosia Mamet; musical guests The Americans.

Stupid Human Tricks; actor Johnny Depp; musical performance by Bill Carter and The Blame.

Actor Luke Wilson; comic Dan Mintz; musical performance by Imagine Dragons.

From "AmeriQua", actor Alec Baldwin; musical guests Emmylou Harris with Rodney Crowell.

Comic Joan Rivers; Daytona 500 winner Jimmie Johnson; musical guest Kendrick Lamar.

Actress and writer Tina Fey; from "Modern Family", actor Jesse Tyler Ferguson; musical guest Solange.

New York City Mayor Michael Bloomberg; musical guests Depeche Mode.

From "The Incredible Burt Wonderstone", actor Steve Carell; from "Game of Thrones", actress Emilia Clarke; musical guest Josh Ritter.

From "The Incredible Burt Wonderstone", actor & comedian Jim Carrey; musical guest Richard Thompson.

From "Olympus Has Fallen", actor Gerard Butler; musical guest Elizabeth Cook

From "Saturday Night Live", comedian & writer Seth Meyers; comic Demetri Martin; musical guests Dropkick Murphys.

Actress Selena Gomez; comic Bob Sarlatte; musical guest Killer Mike.

Comic Bill Cosby; U.S. skier Mikaela Shiffrin; musical guests Garbage.

Actress Eva Mendes; a Top Ten List presented by IndyCar driver Graham Rahal; comic Andy Hendrickson; musical guests The Airborne Toxic Event.

From "Oz the Great and Powerful" and "Spring Breakers", actor James Franco; national grocery bagging champion Andrew Borracchini; music by Ed Sheeran.

News anchor Brian Williams; musical guests Pegi Young & The Survivors.

Comic Gary Gulman; musical guests Wavves.

From "The Company You Keep", actor Shia LaBeouf; comic Jeff Altman; musical guests The Band Perry.

Talk show legend Regis Philbin; a performance from the Broadway musical "Rodgers & Hammerstein's Cinderella".

Comic Louis C.K.; talk show host Rachel Maddow; musical guests The Flaming Lips.

Actor/comedian Martin Short; musical guest Tyler, the Creator; a top ten list with Kevin Ware.

From "Chelsea Lately", talk show host Chelsea Handler; comic Ross Bennett; musical guests Yeah Yeah Yeahs.

From "Scary Movie 5", actress Lindsay Lohan; comic Pete Lee; musical guest Gary Clark Jr.

From "42", actor Harrison Ford; actress Rita Wilson; musical guest Jake Bugg.

From "Mud", actor Matthew McConaughey; Olympic swimmer Ryan Lochte; musical guests Steve Earle & The Dukes (& Duchess).

Actor Steve Martin; musician Edie Brickell; from "The Office", actress Jenna Fischer; musical guests Steve Martin & Edie Brickell.

From "The Reluctant Fundamentalist", actress Kate Hudson; former KFYR-TV anchor A.J. Clemente; musical guest Selena Gomez.

From "The Big Bang Theory", actor Jim Parsons; musical guest Snoop Lion; a Top Ten List presented by Barry Sanders, the cover athlete of the Madden 25 video game.

From "Mad Men", actor Jon Hamm; from "Deceptive Practice: The Mysteries and Mentors of Ricky Jay", magician Ricky Jay; musical guests The So So Glos.

From "The Mindy Project", actress Mindy Kaling; from documentary "Manhunt", former CIA analyst & targeting officer Nada Bakos; musical guest Ben Harper with Charlie Musselwhite.

Talk show host Dr. Phil McGraw; from "Family Tree", actor Chris O'Dowd; musical guests Phoenix.

From "The Great Gatsby", actor Tobey Maguire; Stupid Pet Tricks; musical guest Tom Odell.

From "Bling Ring", Paris Hilton; Miriam Tucker (swallowed and recovered a $5,000 diamond); musical guests Atlas Genius.

From "The English Teacher" and Broadway's "The Nance", actor Nathan Lane; comic Joe Matarese; musical guest Kacey Musgraves.

From "The Office", actor John Krasinski; from "Scandal", actress Kerry Washington; musical guest James Blake.

From "New Girl", actress Zooey Deschanel; comic Jim Gaffigan; musical guests Pistol Annies; sitting in musician Todd Rundgren.

From "Live! With Kelly and Michael", host Michael Strahan; from "How I Met Your Mother", actress Alyson Hannigan; musical guest Natalie Maines.

Animal expert Jack Hanna; from "Star Trek: Into Darkness", actor Benedict Cumberbatch.

From "Star Trek: Into Darkness", actor Chris Pine; comic Tom Dreesen; musical guests She & Him.

From "NCIS", actor Mark Harmon; from "Inside Amy Schumer", comedienne Amy Schumer; musical guest Luke Bryan.

From the Broadway play "Lucky Guy", actor Tom Hanks; a performance by the cast of Broadway musical "Pippin".

From "The Hangover Part III", actor Ed Helms; talk show host Hoda Kotb; musical guest Brad Paisley.

Journalist Barbara Walters; from "Now You See Me", actor Jesse Eisenberg; musical guests MS MR.

From "Arrested Development" and the new CBS series "The Millers", actor Will Arnett; comic Trevor Noah; musical guest Kurt Vile.

From "After Earth", actor Will Smith; musical guests The National.

From "Arrested Development", actor Jason Bateman; Piedmont bird callers; musical guest John Fogerty; surprise guest Tom Hanks plugs his Broadway play during the monologue and top ten list.

From "Now You See Me", actor Woody Harrelson; comic Tommy Johnagin; musical guests John Fogerty with Dawes.

Host of the 67th Annual Tony Awards, Neil Patrick Harris; 2013 Indianapolis 500 winner Tony Kanaan; musical guest Frank Turner.

From "Castle", actor Nathan Fillion; from "The Daily Show with Jon Stewart", comic John Oliver; a Top Ten List presented by Joan Rivers; musical guests Local Natives.

From "The Big Bang Theory", actor Johnny Galecki; from the play "Ghost Brothers of Darkland County", musician John Mellencamp and author Stephen King; musical guests Queens of the Stone Age.

From "The Internship", actor Vince Vaughn; comic Andy Kindler; musical guests Queens of the Stone Age.

From "Despicable Me 2", actor & comic Russell Brand; from "Man of Steel", actor Michael Shannon; musical guests Haim.

Actor & comic Dana Carvey; from "The Kings of Summer" and "Melissa & Joey", actor Nick Robinson; a performance by the cast of Broadway musical "Matilda".

News anchor Tom Brokaw; interview with and musical performance by Darlene Love.

Interview with and musical performance by Harry Connick, Jr.; a Top Ten List presented by members of the U.S. Army; comic Dylan Moran.

Journalist Bill O'Reilly; from "Frances Ha", actress Greta Gerwig; musical guests Quadron.

Comic Don Rickles; from "America's Got Talent", host Nick Cannon; musical guest Tom Keifer.

From "The Newsroom", actor Jeff Daniels; from "Despicable Me 2", actor Ken Jeong; musical guest Jim James.

From "Killing Season", actor John Travolta; comic Chris DiStefano; musical guests Japandroids.

From "The Heat", actress Melissa McCarthy; from "Pacific Rim", actor Idris Elba; musical guests Dale Watson and His Lone Stars.

From "White House Down", actor Channing Tatum; activist Tim DeChristopher; musical guests Fitz and The Tantrums.

From "White House Down", actor Jamie Foxx; Stanley Cup MVP Patrick Kane; a Top Ten List presented by Backstreet Boys; musical guest Wale.

From "The Lone Ranger", actor Johnny Depp; from "Maron", comedian Marc Maron; musical guests Dawes.

From "Crystal Fairy", actor Michael Cera; "Living the Good Life" author Martha Stewart; musical guests Ra Ra Riot .

From "Grown Ups 2", actor/comedian Adam Sandler; musical guest Joseph Arthur.

From "Grown Ups 2", actress Salma Hayek Pinault; from "Veep" and "Arrested Development", actor Tony Hale; musical guests Houndmouth.

From "Grown Ups 2", actor Kevin James; snowboarder Shaun White; musical guest Darius Rucker.

From "Red 2", star Bruce Willis; MLB commissioner Bud Selig; musical guest Valerie Simpson.

From "Real Time with Bill Maher", host Bill Maher; from "Unforgettable", actress Poppy Montgomery; musical guest Pokey LaFarge.

From "Nightly News with Brian Williams", anchor Brian Williams; musical guests Court Yard Hounds.

From "Ray Donovan", actor Liev Schreiber; comedian Adam Newman; musical guests Cold War Kids.

From "Blue Jasmine", actress Cate Blanchett; from "The Talk", co-host Aisha Tyler; musical guests Franz Ferdinand.

From "The Wolverine", actor Hugh Jackman; from "Web Therapy", actress Lisa Kudrow; musician Jason Isbell performs.

From "We're the Millers", actor Jason Sudeikis; musical guests Edward Sharpe & The Magnetic Zeros.

TV personality Regis Philbin; ventriloquist Terry Fator.

From "2 Guns", actor Denzel Washington; musical guest James McCartney.

From "Breaking Bad", actor Bryan Cranston; from "Lovelace", Amanda Seyfried; musicial guests Michael Franti & Spearhead.

From "Elysium", actor Matt Damon; musical guest Hanni El Khatib.

TV icon and actress Oprah Winfrey discusses "The Butler"; from "Anchorman: The Legend Continues", actor Paul Rudd.

From "Drinking Buddies", actress Olivia Wilde; from "Under the Dome", actor Dean Norris; musical guest John Mayer.

Comedian and star of "Louie", Louis C.K.; from The Global Citizen Festival, humanitarian Hugh Evans; musical guest John Legend.

Actress and comedian Tina Fey; musical guest Valerie June.

Tennis champion Serena Williams; comedian Sean Donnelly; musical guests MGMT.

From "Ushi Must Marry", actor Patrick Dempsey; actress and writer Amy Sedaris; musical guest Laura Marling.

Journalist Anderson Cooper; from "The Newsroom", actress Olivia Munn; musical guests Robert Randolph & The Family Band.

Medal of Honor recipient Staff Sgt. Ty Carter; from "Nashville", actress Hayden Panettiere; musical guests In the Valley Below.

Dave celebrates the Late Show and its 20 years and 3,897 episodes with a look back at the past with actor Bill Murray; musical guests Lenny Kravitz & Gladys Knight.

Actor Jake Gyllenhaal; host of "Big Brother" and co-host of "The Talk", producer Julie Chen; musical guests The Dodos.

From "Thanks for Sharing", actor Tim Robbins; football commentator Herm Edwards; musical guests Passion Pit.

From "Teach", host and actress Queen Latifah; from "New Girl", actor Jake Johnson; musical guests TV on the Radio.

From "The Arsenio Hall Show", host and actor/comedian Arsenio Hall; stand-up from Dan Naturman; musical guest Laura Mvula.

From "Derek", creator and actor Ricky Gervais; Chicago Mayor Rahm Emanuel; musical guest Janelle Monae.

From "Monsters University", actor Billy Crystal; musical guest Sheryl Crow.

From "Don Jon", director and actor Joseph Gordon-Levitt; talk show host Keith Olbermann; musical guest Keith Urban.

Actor Alec Baldwin; from "Hostages", actress Toni Collette.

From "Dr. Phil", self-help guru Dr. Phil McGraw; comic Tom Dreesen.

Former President of the United States, Bill Clinton; musical guests Tired Pony.

Interview with and musical performance by Cher. Lizzy Caplan preempted.

From "The Crazy Ones", actor Robin Williams; from "Masters of Sex", actress Lizzy Caplan; an opera Top Ten List presented by soprano Renée Fleming; musical guests Icona Pop.

Musician and humanitarian Bono; from "CBGB" and "The Big Bang Theory", actor Johnny Galecki; musical guests Kings of Leon.

Legendary comedic actor and musician Steve Martin; stand-up comedy by Kathleen Madigan; musican guests The Kruger Brothers with Steve Martin.

From "Sean Saves the World", actor Sean Hayes; musical guest Sting.

From "The Crazy Ones", actress Sarah Michelle Gellar; from "Parks and Recreation", actor Nick Offerman; musical guests First Aid Kit.

From "Scandal", actress Kerry Washington; from "Flying Wild Alaska", TV personality Ariel Tweto; musical guests Yoko One & The Flaming Lips (as Yoko Ono Plastic Ono Band).

Stupid Human Tricks; TV anchor Brian Williams; a performance from the film "Muscle Shoals".

From "Blue Bloods", actor Tom Selleck; stand-up comedy by Michael Somerville; musical guest Albert Hammond Jr.

From "Captain Phillips", actor Tom Hanks; Siri Top Ten; musical guests Two Door Cinema Club.

From "The Awesomes" and "Saturday Night Live", comedic actor Seth Meyers; from "The Counselor", actor Michael Fassbender; musical guest Amos Lee.

From "Elementary", actress Lucy Liu; civil engineering professor Mark Jacobson; musical guest The Weeknd.

Animal expert Jack Hanna; from "The Big Bang Theory", actor Kunal Nayyar.

Talk show host and Football commentator Michael Strahan; stand-up comedy by Simon Amstell; musical guests Cage the Elephant.

From "Parenthood", actor and comedian Ray Romano; from "As I Lay Dying", actor James Franco; Top Ten list presented by Madison Square Garden legends.

From "The Expendables 3", director and actor Sylvester Stallone; from "Mom", actress Anna Faris; musical guests Deltron 3030.

TV host Bill O'Reilly; musical guests The Head and the Heart.

Real estate mogul Donald Trump; musical guest Selena Gomez.

From "The View", co-host Barbara Walters; author Steve Young; musical guests White Denim.

Basketball legend and commentator Charles Barkley; skiing champion Lindsey Vonn; musical guest King Krule.

From "Parks and Recreation", actor Rob Lowe; the 2013 Indy Car Champion, Scott Dixon; musical guest Alan Jackson.

From "The Millers", actor Will Arnett; author of "The Soundtrack of My Life", Clive Davis; musical guests The Avett Brothers.

The Late Show's annual Halloween costume show; from "Ender's Game", actor Harrison Ford; musical guests Holy Ghost! perform.

From "Last Vegas", actor Morgan Freeman; stand-up comedy by Brian Regan; musical guests Frightened Rabbit.

From "Out of the Furnace", actor Woody Harrelson; from World Series champion Boston Red Sox, MVP David Ortiz; musical guests The Wanted.

Actress and comedienne Kathy Griffin; author Bruce McCall; musical guest J. Cole; and a Top Ten List presented by Rep. Nancy Pelosi.

From "Thor: The Dark World", actress Natalie Portman; from "Eagleheart", actor and comedian Chris Elliott; musical guest James Blunt.

From "Live! With Kelly and Michael", talk show host Kelly Ripa; from "How I Met Your Mother", actress Cobie Smulders; musicial guest Gary Clark Jr.

News anchor Tom Brokaw; stand-up comedy by Rhys Darby; musical guest Black Joe Lewis.

From "The Good Wife", actress Julianna Margulies; Army Chief of Staff General Ray Odierno; musical guests Moon Taxi.

From "The Michael J. Fox Show", actor Michael J. Fox; musical guest Lorde.

From "Oldboy", actor Samuel L. Jackson; journalist Chris Matthews.

From "Homeland", actress Claire Danes; from "Nebraska", actor Will Forte; musical guests Metric.

From "Nashville", actress Connie Britton; Stupid Pet Tricks; musical guests Lady Antebellum.

From "Anchorman 2: The Legend Continues", actor Vince Vaughn; 2013 NASCAR Sprint Cup Series Champion, Jimmie Johnson; musical guests Luscious Jackson.

Author and jounalist Anderson Cooper; from "Modern Family", actor Jesse Tyler Ferguson; musical guests The Neighbourhood.

From "The Hunger Games: Catching Fire", actress Jennifer Lawrence; from "Person of Interest", actress Taraji P. Henson.

From "The Wolf of Wall Street", actor Jonah Hill; from "12 Years a Slave", actor Chiwetel Ejiofor; musical guests J. Roddy Walston and The Business.

Radio talk show host Howard Stern; stand-up comedy by Adrienne Iapalucci.

From "The Hunger Games: Catching Fire", actor Josh Hutcherson; sportscaster Chris “Mad Dog” Russo; musical guest Sky Ferreira.

TV personality and style expert Martha Stewart; musical guest Pitbull.

From "Inside Llewyn Davis" and "Alpha House", actor John Goodman; stand-up comedy by Kevin McCaffrey; musical guests Iggy Azalea with T.I.

From "The Colbert Report", host Stephen Colbert; from "The Hobbit: The Desolation of Smaug", actor Sir Ian McKellen; musical guests Chvrches.

Actor and comedian Billy Crystal; from "The Talk", co-host Julie Chen; musical guest ZZ Ward.

From "Saving Mr. Banks", actress Emma Thompson; singer Josh Groban presents the Top Ten List; comedian Andy Cohen; musical guest Nick Lowe.

From "August: Osage County", actress Julia Roberts; musical guest Glen Hansard.

Talk show host Regis Philbin; stand-up comedy by John Witherspoon; musical guest Seasick Steve.

From "Anchorman: The Legend Continues", actor Will Ferrell; a Top Ten List presented by the 2013 Heisman Trophy winner, Jameis Winston; musical guests Chris Cornell feat. Joy Williams.

From "Anchorman: The Legend Continues", actor Paul Rudd; journalist Barbara Walters presents the Top Ten List; from "The Wolf of Wall Street", actress Cristin Milioti; musical guests Alt-J.

From "The Secret Life of Walter Mitty", actor and director Ben Stiller; holiday toy demo with Shannon Eis; musical guest Brett Dennen.

From "Anchorman 2: The Legend Continues", actor Steve Carell; musical guests The Saint Johns.

From "Anchorman 2: The Legend Continues", actress Kristen Wiig; musical guest Darlene Love.