Swift's rep, Tree Paine, tells PerezHilton.com:
Wow. Wow. Wow.
Kanye is straight-up INSANE!!!!!
If you're a big fan, you may have known Robert Pattinson once dreamed of being a rapper!
But did you know he even had a rap alter ego?
Ch-ch-check out the video (above) to see R-Patz get a little red in the face explaining WHY!