Sara's Blog: The History Of Rap Gets A Sequel

Justin Timberlake has pulled out all the stops to promote his "Friends with Benefits" movie. First there was all the fuss over the military ball invitations, and now he and Jimmy Fallon have tried to top their former viral hit with "History of Rap, Part 2". It is more of a mix of rap and hip-hop and it might be even better than their first version.

Fallon and Timberlake throw in everybody from N.W.A. to Outkast to Vanilla Ice. The boys wrap things up by getting the audience to sing along with Biz Markie's "Just a Friend".