As beloved fitness guru Richard Simmons dies at 76 years ... most iconic moments as a regular guest on the Late Show with David Letterman. Simmons always brought the energy and life to Lettermans ...

It was David Letterman’s turn to be in the “Late Show” hot seat. The iconic talk show host, 76, sat down for a discussion with current emcee Stephen Colbert at Manhattan’s Ed Sullivan ...

There’s no denying Richard Simmons was ... and he was a frequent guest of late-night television and radio talk shows, such as the Late Show with David Letterman and The Howard Stern Show.

Fitness expert Richard Simmons attends the "Late Show With David Letterman" taping at the Ed Sullivan Theater, on Oct. 16, 2007, in New York. Ray Tamarra/Getty Images, FILE He was born Milton ...

There is some drama surrounding the Weasel's big Richard Simmons biopic ... Down A Producer Credit ’You Want To Have A Real Show?’ David Spade Shared His Take On Tiger King’s Joe Exotic ...

When it came time for Dan Cashman's late night show to end after 15 years, he knew he wanted to have David Letterman as a ...

David Letterman’s return to the Ed Sullivan Theater earned him a standing ovation. The former late-night talk show host was back at his old stomping grounds for his first time as a guest on ...

The Late Show with Stephen Colbert continues to bring in the numbers, helped last week by David Letterman’s first return to the show since he stepped down. David Letterman On ‘The Late Show ...

The former late-night talk show host was back at the historic Ed Sullivan Theater in New York City Monday night for the first time as a guest on "The Late Show with Stephen Colbert." Letterman ...

By John Koblin It started much like the way it ended for David Letterman ... this time was that Mr. Letterman, in a full gray beard, was a guest of “The Late Show,” and Stephen Colbert ...