May 21, 2015 6:20 am “Are You Smarter Than a 5th Grader?”: Pitbull, Jeff Foxworthy Jeff Foxworthy hosts a special “Tonight Show” edition of “Are You Smarter Than A 5th Grader?” with Pitbull and Jimmy Fallon. 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 2:03 Does Shakira still believe in love following Gerard Piqué split? 1:36 O.J. Simpson's cause of death revealed 25:57 WATCH: ‘Changing Climate' highlights the Philly-area residents who are combatting climate change