(VIDEO) Rick Perry Does David Letterman's Top 10

Just 24 hours after Rick Perry's memory block in the Michigan GOP Presidential Debate, Rick Perry appeared on David Letterman's "Top 10". It's great to see Rick Perry show a sense of humor!

Top 10 Excuses:

10. "Actually, there were three reasons I messed up last night. One was the nerves, and two was the headache, and three ... oops."

9. "I don't know what you¹re talking about - I think things went well."

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

7. "I thought the debate was tonight."

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

5. "Uh, El Nino?"

4. "I had a five hour energy drink, six hours before the debate."

3. "You know, 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."

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