TMZ posts video of 15-year-old Justin Bieber telling a racist joke . The teen was arrested for allegedly making the comment to his friend in front of several people at an L.A. nightclub on Friday night. ` I was a kid then and I am a man now who knows my responsibility to the world ''
TMZ posts video of 15-year-old Justin Bieber telling a racist joke . Now 20 , he says he 's sorry for the `` childish and inexcusable mistake '' Bieber : `` I was a kid then and I am a man now who knows my responsibility to the world ''