You clubbers out there probably already know the Soulja Boy Dance, the latest hip-hop-flavored move sweeping the nation, but a few of us are still in the dark. Case in point, Natalie Portman, who got an impromtu lesson from Soulja Boy himself during a visit to TRL to promote her new film, "Mr. Magorium's Wonder Emporium." In the following clip, witness the magic of Natalie cranking it up and getting her groove on. And if you want more Natalie, our full "Rough Cut" interview with the actress is viewable here.