In 2009, he sat in with The Roots on an episode of Late Night with Jimmy Fallon.

The show was also lampooned on an episode of Late Night with Conan O'Brien.

Shaffer, at Letterman's urging, related the story on the very first episode of Late Night.

He performed with Paul Shaffer and his band in an episode of Late Night with David Letterman.

On July 29, Lawler slapped Kaufman in the face on an episode of Late Night with David Letterman.

On February 20, 2009, NBC aired the last episode of Late Night with Conan O'Brien.

She wins a cooking segment on an episode of Late Night with Jimmy Fallon and a trip to Tokyo.

In 1982, Don Herbert was a guest on the first episode of Late Night with David Letterman.

This TV appearance on the 14th episode of Late Night with Conan O Brien was a turning point in my life as a mu...