Justin Bieber causes mayhem with abs flash

Justin Bieber continued to cause mayhem during his trip to London on Tuesday (24Apr12) by flashing his torso at hordes of screaming fans outside his hotel.

The Baby hitmaker landed at London's Heathrow Airport on Monday (23Apr12) and was met by dozens of hysterical teenage girls.

Due to a lack of security, the crowd got out of hand, and the pop star was forced to dash towards the exit - knocking into a bystander who was trying to take his picture.

And the chaos continued when Bieber was preparing to leave his posh hotel in the city on Tuesday morning after he sent his female fans wild by showing off his abs through a window.

Groups of girls scrambled up the hotel's brickwork to get a better glimpse of the star.