Justin Timberlake + Jimmy Fallon Wrap Up Their Week Together With ‘History of Rap 4′ [VIDEO]
"Justin Timberlake Week" on 'Late Night With Jimmy Fallon' was pretty eventful, what with the coy shade JT threw at Kanye West, the barbershop quintet version of 'SexyBack' and all those mannequin arms flying about.
And on Friday, March 15, they closed out the whole thing in style by doing yet another installment in their epic 'History of Rap' series.