David Letterman crashes 'The Tonight Show,' roasts Jimmy Fallon, plays the tortilla game, then jokes about suing him.

Paul McCartney announced a second surprise show at the Bowery Ballroom slated for Wednesday night, but tickets were quickly snapped up. The East Village venue was completely sold out by 11 a.m.

NEW YORK CITY, NEW YORK: Legendary late-night TV icon David Letterman gate-crashed Jimmy Fallon 's 'Tonight Show' monologue on Monday night, February 10, strolling onto the stage while the host was ...

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

If you watched American talk shows in the 90s, you'll surely remember the feuds between former good friends Jay Leno and ...

David Letterman and John Oliver both paid surprise visits to their old stomping grounds Monday night. Bill Carter reports.

David Letterman - with help from some flour tortillas - made a return to the late-night stage Monday. Letterman crashed Jimmy ...

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

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, ...

On Feb. 10, David Letterman stopped by “The Tonight Show Starring Jimmy Fallon” while his former bandleader, Paul Shaffer, ...

David Letterman made a surprise appearance on The Tonight Show, crashing Jimmy Fallon's monologue to tell a few jokes and ...