May 21, 2015 2:20 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 3:11 Ryan Gosling skips darker film roles because of Eva Mendes and daughters 2:15 Prince William and Kate Middleton ‘going through hell,' friend claims (report) 8:01 Lady Gaga's outfit changes, Rihanna's bold looks and more iconic Met Gala moments 2:48 Taylor Swift fans react to Jake Gyllenhaal and Sabrina Carpenter's ‘SNL' appearance 2:05 Whoopi Goldberg reveals who will inherit her fortune