Justin Bieber arrived at a radio station in “a giant cloud of suspicious smoke”.

The 19-year-old pop star has been accused of smoking marijuana throughout the year.

And X17 Online has captured video footage of his arrival to a Los Angeles radio station on Tuesday that seems to confirm drug use rumours.

“Justin Bieber arrived at Power 106 studios in Burbank to do a radio interview today, and when the singer emerged from his van to head into the building, a giant cloud of suspicious smoke billowed out of the vehicle!” the website wrote beneath a clip which sees Justin and his entourage exiting the vehicle.

“Either The Biebs had a ton of dry ice in the back, or he was indulging in a little morning wake and bake!”

It has been claimed that 41-year-old hip hop icon Eminem is hoping Justin will accept his invitation to stay at the rapper's home in Michigan, Detroit, between Christmas and New Year.

Eminem, who battled an addiction to prescription medication in the past, reportedly thinks he can provide Justin with constructive support.

"He’s really hoping he can sort Justin out," an insider told British newspaper The Sun recently.

"The way he’s going, he’s worried he’s going to end up in really bad trouble. He wants to talk him into going to therapy and counselling to deal with the stress of fame in a positive way.

"Everyone is saying how they think [Justin’s] a ticking timebomb."