Justin Bieber, the little icon, Knocked Down in Herald Square on Thursday by an unidentified man on Thursday, 23. Bieber was going to promote the release of his new women's fragrance "Someday", at the iconic New York City store. He had decided to come outside of the store to greet the fans who weren't able to get into the event. According to witnesses, an unidentified man jumped over a barrier and knocked him down. Bieber was not injured but understandably was quite "shaken up." According to TMZ, a plainclothed, undercover police officer approached Bieber, who thought the man was a "crazy fan." A member of Bieber's security team grabebd the officer, who immediately identified himself. Now Bieber needs to be very careful when he'll go to promote or perform.