Just call her Amy Roundhouse.
During a concert in England last night, Amy Winehouse punched a fan that attempted to grab her.
Watch the video below to see the crazed singer on the attack:
[youtube]http://www.youtube.com/watch?v=3IN7yJWi21E&eurl=http://www.thehollywoodgossip.com/videos/amy-round-house/[/youtube]