Efron attacked by fan in London

'High School Musical' star Zac Efron was left shaken during a night out in London with girlfriend Vanessa Hudgens after he was attacked by a middle-aged man.

The 20-year-old was making his way through a throng of screaming fans as he left the Apollo Theatre with Hudgens on Wednesday after watching Hollywood star Josh Hartnett's performance in a stage adaptation of 'Rain Man'.