Whenever Justin Timberlake visits the set of Late Night with Jimmy Fallon, you can be sure that he and Mr. Fallon will deliver another awesome rendition of their educational "History of Rap" series. With the backing of The Roots, Fallon and Timberlake deliver a third educational lesson, this time showcasing rhymes by OutKast, Kanye West, Beastie Boys, LL Cool J, Nicki Minaj and even Sir Mix-A-Lot's one hit wonder "Baby Got Back." Check out the performance for yourself in the player above. As well, you can check out the History of Rap, Pt. 2 here.