Bieber caught using N-word in racist joke

A teenage Justin Bieber was caught on camera dropping the N-word, while telling a tasteless joke to pals, it was reported Sunday.

“Why are black people afraid of chainsaws?” Bieber, now 20, asks a woman sitting next to him on the couch, according to a video published by Britain’s Sun.

A male pal off camera tried to stop the mop-topped singer from finishing the joke: “Don’t even say it, don’t say it.”

But Bieber couldn’t help but deliver the nasty punchline: “Run n—er, ­n—er, n—er, n—er, n—er.”

Bieber’s team knew about the offensive video clip — believed to have been recorded when the singer was 17 years old — and had offered big bucks to keep it quiet, according to The Sun.

A rep for Bieber could not be immediately reached for comment.

The video was reportedly shot during filming for his 2011 documentary, “Justin Bieber: Never Say Never.”

Warning: Graphic Language