Pop star Justin Bieber was "shaken up" when a man knocked him to the ground while he was greeting fans outside a Macy's store in New York City. He was at an event for the unveiling of his new cologne when he decided to go outside to greet some fans. That’s when a man broke past a metal barrier and tackled Bieber while shouting at him. The man was taken away by police. Bieber wasn’t hurt, but was very shaken up.