To prove that the Soulja Boy dance has some serious legs, actress Natalie Portman appeared on MTV's 'TRL' to promote her new movie, 'Mr. Magorium's Wonder Emporium,' and admitted that she wanted to learn how to do the dance. Luckily for Portman, Mr. Crank That was in the building and came onset to give her a quick lesson.

The actress wasn't exactly a quick study, but did manage to follow along while Soulja Boy bounced around the stage. Soulja Boy mania continues with the rapper continuing to dominte the Top 11. Check out this week's Top 11 Show.