American Idol 9: Andrew Garcia and Katie Stevens Visit The Late Show with David Letterman

So, after a short funny interview with David Letterman, Andrew Garcia and Katie Stevens sang Chris Brown and Keri Hilson's Superhuman.

Well, maybe they didn’t have much time to rehearse? They entered on a different key, which made the performance a little off. But it was extremely brief though. Anyway, the performance wasn't that bad. I think Katie sounded really great.

Video after the jump!!