Swift's rep, Tree Paine, tells PerezHilton.com:
Wow. Wow. Wow.
Kanye is straight-up INSANE!!!!!
Do you want to listen to more Mumford & Sons? Sure, we all do.
And here is the good news:
You don't have to wait to hear I Will Wait, a brand new track off their upcoming record Babel that won't drop until Sept. 24th … because we've got it for you right here!
Ch-ch-check out the song early with this temporary video (above)!
WARNING: If you get carsick easily, you might want to look away and just listen to the beautiful British folk rock.