October 1, 2010 5:20 pm Jimmy Fallon Explains Evolution Of “A History of Rap” Jimmy Fallon talks about his viral hit from “Late Night with Jimmy Fallon” in which he and Justin Timberlake rap to some of the greatest hip-hop songs in history! Whose idea was it? US & World Videos 1:37 Pro-Palestinian protesters gather outside White House correspondents' dinner 2:05 How ‘Love Is Blind' made Vanessa Lachey and Nick Lachey's marriage stronger 5:49 Kelly Clarkson hilariously attempts handmade pasta with chef Evan Funke 1:36 O.J. Simpson's cause of death revealed 2:03 Does Shakira still believe in love following Gerard Piqué split?