Letterman: Top 10 Reasons Perry Flubbed The Debate

10. Actually, there were three reasons I messed up last night. 1.) the nerves. 2.) the headache and 3.) ummm ... uh ... oops.

9. I don't know what you're talking about. I think things went well.

8. I was up late last night watching Dancing with the Stars.

7. I thought the debate was tonight.

6. You try concentrating with Mitt Romney smiling at you. That is one handsome dude!

5. Uh, El Niño?

4. I had a 5-Hour Energy drink six hours before the debate.

3. I really hoped it would get me on my favorite talk show, but instead I ended up here.

2. I wanted to help take the heat off my buddy Herman Cain.

1. I just learned Justin Bieber is my father.