Teen sensation Justin Bieber was threatened with arrest if he failed to send an internet message to fans urging them to go home after a signing in New York descended into chaos.

The 15 year old was forced to cancel an appearance at the Roosevelt Field shopping mall in Long Island in November after thousands of screaming teens showed up to catch a glimpse of their pop idol.

Mall guards were unable to keep the fans under control and event organizers deemed it too unsafe to bring Bieber out, prompting the cancellation of the event.

Bieber took to his Twitter.com blog and told his devotees to leave. He also revealed a member of his team had been taken into custody by police.

And the singer has now admitted officials threatened to arrest him if he did not comply with their instructions.

He says, "They expected 1,000 fans, but 10,000 turned up. The stupid police officers ended up threatening to arrest me for coming. They told me to Tweet my fans telling them I wasn't coming, otherwise they would arrest me. It didn't make sense - how could you arrest someone for not Twittering?"