Pop superstar Justin Bieber appears to be on his full rock star ish, after new reports say he was driving his Ferrari so fast through his gated Calabasas, California community that former NFL player Keyshawn Johnson who was leaving a party there followed him to his home and confronted him. Police will not confirm what happened when Keyshawn, who was driving a Toyota Prius confronted the singer, but reports are Bieber ran inside his house and refused to come out even when police came.