The Tonight Show Starring Jimmy Fallon — Episode 4: Lena Dunham, J.K. Simmons, Ghostface Killah with the Revelations featuring AZ and Kool G Rap

You are watching the episode Lena Dunham, J.K. Simmons, Ghostface Killah with the Revelations featuring AZ and Kool G Rap Actress Lena Dunham; actor J.K. Simmons; rapper Ghostface Killah performs with special music guests rapper AZ and Kool G Rap.