She just finished mumbling through her performance for Nelson Mandela and then she took a minute to sing at Glastonbury 2008. She returned to her incoherent glory and managed to punch some a fan while singing Rehab. Good thing those security guards were able to hold all 80 pounds of her back of the fan would have...well...probably would have gotten a really pointy elbow in the eye. Go to rehab now Amy. Don't run, teleport to rehab.
(Ami, fight, brawl, fist, crowd, wino)