Swift's rep, Tree Paine, tells PerezHilton.com:
Wow. Wow. Wow.
Kanye is straight-up INSANE!!!!!
Most of you didn't like her singing, but we're pretty sure you're gonna like this one.
It's Johnny Depp! And his longtime girlfriend/baby-momma Vanessa Paradis.
The duo went to the recording studio to sing Ballade de Melody Nelson in Serge's honor.
Mmm, sultry goodness! We're swirling around in a giant champagne glass right now.
U gotta give it a listen. Play it!!