The Glastonbury main boss/promoter Michael Eavis who sets up the show witnessed everything that happened during when Amy punched the fan in the audience. The reason is, the male fan groped her breasts as she was standing right in front of him singing. In the video below it was kind of hard to see the fan grabbing her breasts since there was a security gaurd standing in the way blocking everything.

Amy also asked Michael Eavis if she could headline Glastonbury for next year. He seems to be down with that idea and liking it.

NME reports:

http://www.nme.com/news/amy-winehouse/37721

That’s a good reason for Amy to punch the fan if what Michael Eavis says it’s true, I guess. She still needs to be more positive speaking in between songs, nobody wants to hear her whine about her husband in jail that’s why she got booed for that part.

Kev