Justin Bieber "Baby" and "U Smile" on American Idol with a surprise ending!

Who got kicked off American Idol tonight? Who cares! We were all prepared for the inevitable. After two bad song choices last night that the producers and judges probably set him up for, Casey James left the American Idol stage. Let this be a lesson to all future contestants to only select songs the general American public is familiar with...and not to pick ones written by artists who tell Playboy they're not into black chicks. There goes a big chunk of your audience right there.

What most people will be talking about tomorrow -- and by "most people" and "talking" I mean young girls who are Tweeting --- is the performance by the special musical guest. (I'll apologize in advance for the cheesiness I'm about to throw upon you.) The AI audience came down with a serious case of Bieber Fever when teen pop star Justin Bieber performed his new song "U Smile" and his hit single "Baby". Baby, baby, baby, oh...I never get tired of this song! Justin probably gets a little sick of it, but he forever stays energetic in his performances. He switched it up a bit at the end of the song, by showing off a skill that non-obsessive fans over the age of 16 may not be aware of. He headed to the back of the stage and shredded on the drums like he was Travis Barker. Not really, but he was pretty good! Check out more drumming from Biebs here. You can watch Justin Bieber's "U Smile" and "Baby" American Idol performances below.