It’s not often that you have one talk show host show up as a guest on someone else’s talk show.
But this time, it was AWESOME.
Conan O’Brien visited David Letterman… and both of them BASHED Jay Leno.
If you remember, Jay forced Conan out of “the Tonight Show” after Leno’s new show was a flop. Letterman has also had a beef with Leno for years.
Here are some of the highlights: