The History of Rap with Justin Timberlake, Jimmy Fallon, and the Roots September 30, 2010 cohenaaronhip hop, jimmy fallon, justin timberlake, music, the roots, videos, youtubeLeave a comment Didn’t know much after like 2:00 or so, but this is awesome. Via Buzzfeed The History of Rap with Justin Timberlake, Jimmy Fallon, and the Roots