For a while it looks like Jaden's just going to sit there like a lump while the Biebs rocks the teenage world in a recording studio intercut with clips of the movie to add a little production value. But Jaden finally cuts loose with a few choice dance moves and nifty rap break.

And while some might insist that "Parents Just Don't Understand," we think Big Willy would totally be down with Jaden's rap.