COMEDY
03/18/2010 05:12 am ET | Updated May 25, 2011

Letterman Takes On NBC Honcho Jeff Zucker (VIDEO)

We've already heard "leaked" voicemails Jeff Zucker left for Conan, but last night on the "Late Show" Letterman counted down the top ten messages left FOR Jeff Zucker.

After an intro mocking Jay Leno for the tactics he used to get the "Tonight Show" in the first place, Letterman took on the NBC CEO for his late night debacle.

WATCH: