Swift's rep, Tree Paine, tells PerezHilton.com:
Wow. Wow. Wow.
Kanye is straight-up INSANE!!!!!
Gawd dayam gurrl!
She proved it again!
Thursday night, Mz. Underwood took a break from HIGHlarously hosting the CMAs to wow the crowd with a performance of her latest hit, Blown Away.
Press PLAY (above) to watch the country diva show off her skills!!