"She was a nightmare to deal with," the woman told the magazine. "She was screaming and flipping out from the pain and wiggling her body all around."
Police eventually arrived to control the crowd and help Spears' bodyguards guide her into a waiting SUV. And by that time, she had covered her head with the hood of a sweatshirt.
As for the new bald look, one fan who's not terribly thrilled said, "It looks terrible."