Salesman Wayne Lindsay, 29, said: "She was in front of me at the bar and suddenly turned and walloped me three times across the face. It really stung.

"I couldn't believe it. I hadn't said a word to her or touched her. I was just drinking a pint with my friends. She was wild. She just flipped. It was as if she had voices in her head." Security guards stepped in but quickly laid off Wayne when they realised he was not causing trouble.

Hours after hitting Wayne, Amy - whose family had hoped she was kicking drink and drugs - struck a fan outside her nearby flat after claiming he pinched her bottom. A week earlier, she hit out at another fan at the Glastonbury festival for touching her trademark beehive hairdo.

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