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"
Justin Bieber was in serious damage control mode Sunday after a video of him telling a racist joke to friends surfaced.
In the video, posted to TMZ.com, the pop star, then 15, asks: “Why are black people afraid of chain saws?”
He answers his own question: “Run n*****, n*****, n*****, n*****,” he says, imitating the sound of a chain saw. Then he laughs.
TMZ reported it got the video four years ago but decided against posting it then becaus