May 6, 2014 2:24 am Fallon Combines Pop Culture and Math in “Popular Mathematics” After hearing that Americans are ranked 30th in the world in terms of math skills, Jimmy Fallon decided to express equations using pop culture. Local 2:48 Taylor Swift fans react to Jake Gyllenhaal and Sabrina Carpenter's ‘SNL' appearance 1:07 Britney Spears spotted as authorities respond to alleged hotel incident 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 2:05 Whoopi Goldberg reveals who will inherit her fortune