Fans of teen-pop sensation Justin Bieber have jammed the phone lines at the Royal Garden Hotel during his stay in London this week.

Over 2,000 fans reportedly rang the hotel pretending to be friends or family members of the singer.

While large numbers of fans are expected wherever Justin Bieber goes, the London hotel said they were unprepared for this level of pandemonium. In the past few days since his arrival in the capital on Monday fans have been waiting outside his hotel, with pictures showing girls in tears after seeing the young star.

Bieber fever really has hit London!

[Photographs: Flynet Pictures]