Fans, beware. Here comes Amy Winehouse's latest hit.
Video has surfaced showing the 24-year-old soul diva getting into a scuffle with a concertgoer during her performance at Britain's Glastonbury music festival on Saturday.
The Grammy-winning singer appears to jab her elbow at the crowd while singing "Rehab" in the mosh pit. Seconds later, Winehouse angrily throws a couple punches.
Asked about the incident, Winehouse's rep said, "The 'lashing out' was when someone tried to grab her hair and she reacted."
What do you think? Did a fan get too close or did Amy make the first move?