Justin Timberlake Re-Teams with Jimmy Fallon for 'History of Rap 3'

Justin Timberlake and Jimmy Fallon are at it again. The dynamic duo returned for the third installment in their popular “History of Rap” series on Friday’s “Late Night.” Backed by The Roots, J.T. and J.F. served up another impressive hip-hop medley including old school classics like Kris Kross’ “Jump” and LL Cool J’s “Mama Said Knock You Out” to newer hits such as Kanye West’s “Stronger” and Nicki Minaj’s “Super Bass.” Brush up on your hip-hop history with their latest lesson.