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

Paul Shaffer, who spent 33 years as David Letterman’s musical director, is returning to late-night and reuniting with his ...

Paul Shaffer isn’t done with late night just yet! The musician is heading to Studio 6B in Rockefeller Center with The World’s Most Dangerous Band to fill in for The Tonight Show Starring Jimmy Fallon ...

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 ...

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

The appearance from the former Late Night and Late Show host offered a reunion with bandleader Paul Shaffer, who is sitting in with his World’s Most Dangerous Band on The Tonight Show this week. The ...

“Paul and I used to do a show pretty much exactly like this,” Letterman noted to the Tonight Show audience. “We didn’t do the Chuck E. Cheese crap” — referring to Fallon’s frequent ...

Jimmy Fallon viewers were left surprised earlier this month when The Roots, the show's longtime house band, were noticeably absent.

“The Tonight Show” started Monday off with a surprise appearance from the now-retired David Letterman, who poked fun at Jimmy Fallon while reuniting with bandleader Paul Shaffer ...