America's two funkiest white men are at it again!

With Stephen Colbert hitting the airwaves this week on CBS, Jimmy Fallon brought out the big guns last night on "The Tonight Show Starring Jimmy Fallon", namely his number one sidekick and bromance partner, Justin Timberlake.

It's the sixth go around for the "History of Rap" and this one didn't disappoint! The duo performed classics by LL Cool J, NWA, MC Hammer, Nelly, Jay-Z and many, may others.

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