After teasing that they couldn't possibly do another rap medley, the singer and his host did just that with a raucous and funny History of Rap 4.
For more than six and a half exhausting minutes, the pals sampled 26 different tunes!
Highlights included Jay-Z's Izzo, The Notorious B.I.G.'s Hypnotize, Eminem's Lose Yourself, and the essential rap classic from 2 Live Crew, Me So Horny.
Is this JT and Fallon's final History of Rap? Don't count on it. These guys have way too much fun doing them.