Rapper slams craze that's got the likes of Kings Of Leon, Katy Perry and Justin Bieber hooked

Xzibit has launched an attack on ‘planking’ and implied that it has racist connotations.

The rapper argued that the craze – which sees people lie down in unusual places and post a picture online – is “not funny” as it has origins in the slave trade.

“Planking is THE dumbest shit ever,” he wrote on his Twitter page, Twitter.com/xzibit.

“Planking was a way to transport slaves on ships during the slave trade, it’s not funny. Educate yourselves,” he later tweeted, before continuing: “Don’t get it twisted. I care less where your dumb asses lay face down and take pictures of the shit, I’m just telling you where it came from.”

A number of bloggers and online commentators have moved to back the former Pimp My Ride host’s slave trade claims, citing research which apparently shows that slaves were forced to adopt the pose when they were chained to ‘plank’ beds.

The craze has also attracted criticism from safety campaigners after a number of high profile accidents, including a man who fell to his death from a seventh floor balcony in Australia.

The likes of Kings Of Leon, Katy Perry, Chris Brown and Justin Bieber have all posted pictures of themselves planking on Twitter.