David Letterman made a surprise cameo on The Tonight Show Starring Jimmy Fallon on Feb. 10, interrupting Fallon's monologue ...

"Is this the 23rd hour of The Today Show?,” Letterman asked as he wandered onto the stage to greet Jimmy Fallon.

It was a throwback evening on NBC since Paul Shaffer and longtime members of his backing band filled in for the Roots as they ...

After singing the updated version of "Asshole," Leary and Fallon sat down to discuss the song. "I don't know if people are ...

Philadelphia Eagles running back Saquon Barkley, Super Bowl MVP Jalen Hurts to be guest on the Tonight Show with Jimmy Fallon ...

On the “Tonight Show Starring Jimmy Fallon,” the host poked fun at the Chiefs on Monday night. This came in the form of a ...

Feb. 11 (UPI) -- David Letterman joined Jimmy Fallon during his monologue on The Tonight Show Monday. "Is this the 23rd hour of the Today show?" asked the former Late Show host, feigning confusion, ...

David Letterman crashed The Tonight Show on Monday night to reunite with Paul Shaffer and poke fun at Jimmy Fallon.

Watch a very embarrassed Rob Lowe accidentally refer to Jimmy Kimmel as Jimmy Fallon while visiting 'Jimmy Kimmel Live': 'I ...

Jimmy Fallon's Broadway debut was extra meaningful for 'the Tonight Show' host. After taking his first bow in All In: Comedy ...

Four days a week, Jimmy Fallon performs for a TV audience of millions of people as the host of NBC’s “The Tonight Show.” But ...

Around the 3:47 mark of Jimmy Fallon's monologue on Monday's The Tonight Show, David Letterman came out of retirement to crash the party. "Is this the 23rd hour of the Today Show?" he quipped, before ...