Drake was a little iffy. He cant rap live.

Ke$ha was awesome though. But she does need to learn a different song. "TiK ToK on tha clock!" yes... we get it.

jb..... well his voice is to deep and he has really gotten old - i think his 15 minutes are up.

katy perry was just awful. she didnt sing half the song.

in my opnion - no one can sing GREAT live.