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

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

Show is turning green on Tuesday. Jimmy Fallon is set to entertain Philadelphia Eagles quarterback and Super Bowl MVP Jalen ...

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

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, ...

Jimmy Fallon joked that Donald Trump is starting beef with American allies because he doesn’t seem to view them as such.

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, ...

Fallon was riffing with Paul Shaffer and the World’s Most Dangerous Band, Letterman’s longtime sidekick and band from his time hosting CBS’ Late Show from 1982 to 2015 — Shaffer and co were filling in ...

Letterman began his late night TV career at NBC, where he hosted the groundbreaking “Late Night With David Letterman” from 1982 to 1993. The show followed Johnny Carson’s “Tonight Show.” When Carson ...

Day, who ended his sixth season as the Buckeyes head coach with his first national championship win, was a guest on "The ...

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 ...