Justin Timberlake and Jimmy Fallon Perform 'History of Rap 4'

Justin Timberlake wrapped his week-long run on Late Night With Jimmy Fallon by joining the host in another installment of “History of Rap” medleys Beginning with the Sugarhill Gang’s “Apache (Jump On It)” with backing by the Roots the pair touched on the Beastie Boys 2 Live Crew Missy Elliot and…