John Oliver, Jon Stewart, Jimmy Fallon, Seth Meyers and more had cameos during the July 21 episode of "The Late Show With Stephen Colbert."

The September event, coming to New York for the first time, will also include panel discussions with Robert Downey Jr., David Letterman and Richard Ayoade.

In 1993, he started working as a writer-producer on Late Night with David Letterman, which aired on NBC. Burnett ultimately made the move to CBS with Letterman when The Late Show was picked up at that network.

“When I came on this show with Dave, I originally did the pre-interview in character and I realized that it was just a little silly, so I called them back and I said, ‘Listen, this is what I’m doing. I’m coming out here and I’m doing this whole thing. And I just want Dave to like, lacerate me. I just want it to be really dangerous,'” the

John Oliver is calling the cancellation of The Late Show With Stephen Colbert “incredibly sad.” While speaking to reporters over the weekend, Oliver was asked his thoughts about the news, which CBS revealed in a surprise announcement on Thursday. A daily brief about what matters and what's interesting in Hollywood.

Joaquin Phoenix is looking back at the rollercoaster of awkwardness that etched his 2009 interview with David Letterman in late-night history.

There was truly nobody like David Letterman. The longest reigning late-night host in history, Letterman was quick-witted, irreverent, and hilarious. But it wasn't all laughs—for David Letterman, fame came at a terrible price. So what was Dave's life like ...