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Troubled singer AMY WINEHOUSE stunned the Glastonbury crowd after seemingly attacking a fan.
The 24-year-old was singing her hit track Rehab to 75,000 fans on the Pyramid Stage on Saturday when she jumped from the stage and into the security pit.
The star - who has been receiving medical attention for the lung disease emphysema - then appeared to lash out at a fan, striking the unnamed person with her fist.
But a spokesman for Winehouse insists she was provoked because the fan had tried to grab the singers famous beehive hair.
Amy representative said: "The 'lashing out' was when someone tried to grab her hair and she reacted."
And it seems Miss Winehouse couldn't escape controversy this weekend.
The star provoked outrage at Mandela's 90th birthday concert after changing the words of Free Nelson Mandela, the show's finale song, to "Free Blakey, my fella".
Mandela served 27 years in prison for fighting against the racist South African regime.
Fielder-Civil is currently imprisoned on charges of assault and perverting the course of justice.
During Amy's Glastonbury performance she hit back at fans who booed her as she paid tribute to her incarcerated husband, saying: "Boo me one more time and I'll find you and your phone and call your mum and tell her you ain't got no manners."
Police say Amy will not be charged over the incident.