Both are seasoned, popular comedians. Both wear glasses, as Letterman noted.
And both have gotten into a bit of hot water when they've stepped from their familiar gigs.
Colbert created quite a stir when he performed as the main entertainment at the 2006
The routine largely targeted then-President
"I stand by this man," said Colbert. "I stand by this man because he stands for things. Not only for things, he stands on things. Like aircraft carriers, and rubble, and recently flooded city squares. And that sends a strong message: that no matter what happens to America, she will always rebound, with the most powerfully staged photo ops in the world."
The routine drew a rather chilling reception from the audience, and an unsmiling Bush was shown in news footage. However, clips of Colbert's speech were hugely popular on the Web.
Letterman also divided audiences when he hosted the
Still, the show drew a large audience and was the highest rated Oscars since 1983.