It seems that she has swallowed some chemicals or been exposed to some RF that causes her relative time to vary and she is experiencing a speed up or slow down of her own existence.
Either that, or someone has sped up and slown down the footage...
Even if she lost her voice, she wouldn't keep time that badly, and she would hear what she sounded like and stop.
Those damn chemtrails have gotten to her!
Edit: Thanks though for the most believable youtube footage you have posted ;-)
Busta , we agree on something!!!!! the blackest white soul voice since Dusty Springfield, **** Amy Winehouse, just a cabaret act for mine. Anyway, I could understand you wanting to give her one but after you two break up do you think it would be OK if I called her . but on a scale of one to ten, I'd give her one!!!(que Benny Hill music)