In our behind-the-scenes look, we found out that the video not only stars Justin's mentor Usher -- he sings on the remix after all -- but it also features the Beat Freaks and the Poreotics from America's Best Dance Crew. It's all about the killer choreography for this single, which was directed by the unstoppable Dave Meyers (Britney Spears, Kelly Clarkson).
A lot of the video was shot with a green screen to be able to create the all of those dramatic backdrops. The green screen also allows editors to make the cool effects you see happening with Justin's back-up dancers. Their moves, however, are totally real. Ready to see JB in action? Watch the full video after the jump.