I personally don't think it sounds THAT bad... For someone who was dancing as intensely as she was on stage, I think it's kind of a stretch to say she's a bad singer live... I mean COME ON.
Here is Taylor Swift's VMA's performance, with her live vocals isolated. Brace yourself. http://t.co/enWdm9j7mg— Deadspin Concourse (@DSconcourse) August 25, 2014