Jimmy takes a moment to introduce Paul Shaffer and The World's Most Dangerous Band, who will be filling in for The Roots ...

TV legend David Letterman made a surprise appearance on NBC’s “Tonight Show” on Monday night during host Jimmy Fallon’s ...

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

The appearance from the former Late Night and Late Show host offered a reunion with bandleader Paul Shaffer, who is sitting ...

Letterman’s longtime sidekick and band, Paul Shaffer and the World’s Most Dangerous Band, were on the show filling in for Fallon’s house band, The Roots, which is rehearsing for Friday night ...