Amy Winehouse sent shockwaves through the audience after throwing several punches into the crowd at Britain’s Glastonbury Festival on Saturday.

The attack may have been sparked by audience booing at the mention of Winehouse’s incarcerated husband, Blake Fielder-Civil.

“This one was another one where I never thought I would see Blake again. I said, ‘Blake I never thought I would see you again’. I thought I would die with the man and then never see him again.”

Amy threatened: “Who booed? I will find you.”