Justin Bieber on Rob Dyrdek's Fantasy Factory

Pro-skater , Rob Dyrdek returned to MTV tonight with Rob Dyrdek’s Fantasy Factory,” in which he brings us to the personal mecca that is the Fantasy Factory — the world’s first all-concrete indoor skate plaza and office complex, where Dyrdek and friends show off some fancy tricks on bikes and wheels and stuff. You know, boy stuff (just kidding, girls, you know you’d ride a bike into a ball pit if someone gave you the chance).

But, Rob Dyrdek doesnt make his comeback alone. yes, he's with 

Justin Bieber. That’s right, you guys:JUSTIN BIEBER IS ON “FANTASY FACTORY!!! And he’s doing that thing on the bike we just talked about. Justin Bieber also pulls off some insanely unsafe acts in go-cart and various other tricks only Rob Dyrdek or Bieber should attempt.

We know, we know, you’re worried about his hair, but we promise, even after he wears a helmet (which he does, THANK GOD!), dude gets off without even the slightest trace of helmet hair. THERE IS NOTHING JUSTIN BIEBER CANNOT DO!