David Letterman

Highlights from Dave's monologue for May 22, 2012.

They may not agree on politics, but will Dave and Bill come together for a friendly fist bump?

Dave welcomes the top 3 participants from the Piedmont bird calling competition.

Arriving at David Letterman, internet celebrity Justin Bieber poses for a few photographs for the hordes of young, shrieking females planted at the set's entrance. Shouldn't you all in be in school?

David Letterman shares detail of his relationship with the legendary Johnny Carson.

David Letterman opens up to pal Regis Philbin for a special CNN interview tonight, giving viewers a rare glimpse into his heavily guarded family life. David Letterman opens up to pal Regis Philbin for a special CNN interview tonight, giving viewers a rare glimpse into his heavily guarded family life. Letterman summed up fatherhood, saying, "Life is no longer solely about you. It's about him." The comedian has an eight-year-old son, Harry, with wife Regina Lasko. RELATED: David Letterman on Lindsay Lohan Incident: 'We Got Duped'

With Regis Philbin hosting, David Letterman recounts going back on the air following September 11.

David Letterman talks about his debut experience performing comedy on Johnny Carson's show.

A Fox News host trying his hand at a signature Obama move? Inconceivable. But apparently all it takes is a bit of prodding from David Letterman. Watch as he and O Reilly faceoff over the current president s accomplishments, before settling their beef with a bump.

Lea Michele definitely didn't look like her demure Glee character, Rachel Berry, on Monday as she was spotted leaving the Late Show With David Letterman in NYC. The 25-year-old actress and singer sported a glamorous, super sexy cut-out dress that showed off some serious skin! Plus, Nicole Richie donned a '60s inspired ensemble to the FiFi Awards, and Will.i.am became the 109th torch bearer to carry the Olympic flame on Monday in England. Find out what he was doing while holding the torch!

Guest host Regis Philbin and David Letterman discuss using political humor on late night television.

David Letterman on Romney s Day 2, Sean Hannity counts to 9 for Sarah Palin s benefit, and Mr. Snuffleupagus doubts the former Alaska governor on today s Top Lines.