Pop superstar Justin Bieber is in hot water over a racist joke he made when he was 15 years old. In an old video that was leaked by TMZ, the 'Looking For You' singer is sitting with his friends when he begins his crude joke.

"Why are black people afraid of chainsaws?" he asks. "Don’t even say it," someone warns.

He responds with the punchline, while making chainsaw sounds, "Run, n-----, n-----, n-----."

The U.K. tabloid The Sun also posted the video claiming that Bieber tried to buy the clip for a "huge sum of money." Apparently, the video was recorded during the making of his 2011 concert documentary, 'Never Say Never,' but was cut out for obvious reasons.

Meanwhile, TMZ claims to have obtained the video four years ago, but decided not to post it because he was 15 years old at the time.

Bieber is reportedly “frustrated and sad” about the video and will publicly address it soon (read: My crisis manager is on the case).

Bieber's manager, Scooter Braun, nor his mentor, Usher, has issued a statement about the footage.

Of course, reactions have been mixed on Twitter with fans of Biebs defending him, while others are demanding that he gets shipped back to Canada -- permanently.

What do you think of the brouhaha surrounding Justin Bieber's racist joke? Tell us in the comments below.