Singer marks return to stage with alleged audience assault.

Amy Winehouse returned to the stage over the weekend, reportedly once again creating headlines with her somewhat strange antics. According to reports, the singer allegedly punched a fan during a performance at the Glastonbury Festival in Somerset, England.

In a video posted by the BBC and on YouTube, she can be seen flailing her arm wildly, presumably at an audience member just off-screen.

Reports indicate she was reacting to being grabbed by an audience member.

British police say that have not received complaints about the incident, while a festival spokesman said there would not be an investigation into the matter.