The Best Episodes of Late Show with David Letterman

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

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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).

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

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Senator John Edwards, Diablo Cody, and Josh Ritter are the scheduled guests.

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Stephen Colbert and Kristen Stewart are the scheduled guests.

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A very pregnant Demi Moore is given the honor of throwing the first pencil through the backdrop windows of the Late Show.

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Tom Hanks interrupts the monologue because he and Dave are dressed alike; throughout the night, spelling bee champ Edmund Gillette stands next to Rob's desk and spells words; during Mailbag, Alan Kalter reacts badly to a letter asking if he's a freak by visiting the letter-writer (Jay Johnson) and punching in his face; Tom gets a new suit.

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Dave shows a tape of stunt biker/scheduled guest Travis Pastrana's mishap that afternoon, and the injured daredevil later hobbles onstage. By the end of the show, the Hi-Ho Girls are helping Travis repair his bike.

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Dave plays "Know Your Current Events" with the audience. Later, Paul Newman talks about auto racing while promoting "Road to Perdition."

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Tonights guests include Rachel Weisz, David Rakoff and Morningwood.

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Dave's beard gets a key to the city, courtesy of Mayor Bloomberg; a wayward WGA picketer wanders around in the backdrop; Hal Gurnee's latest Network Time Killer is a "balloon drummer"; Ellen Page plugs Juno; Roger Bart, Sutton Foster, and Chris Fitzgerald perform a song from the musical "Young Frankenstein."

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Tom Hanks and Mike Huckabee are the scheduled guests.

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Morgan Freeman and Chuck Prophet are the scheduled guests.

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An audience member claims to know Dave's ex-wife, who apparently now lives in Florida; the show is again interrupted by radio transmissions from Lt. Len Easton of the California Highway Patrol; Mike McIntee and Harold Larkin play "Can Two Guys and Their Dead Friend In An Office Chair Hail a Cab?"; Don Rickles plugs his DVD Mr. Warmth and throws a few zingers at Dave and fellow guest Denzel Washington.

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"AMPTP President Nick Counter" and "Writers Guild Executive Director David Young" call a truce... and make out; in tonight's remote, Andy Kindler visits a toy convention; the latest Kid Scientist experiments from Naperville, IL include gravity-defying water and a crudely-built hovercraft; Kenna (featuring N.E.R.D.) performed "Say Goodbye to Love."

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