Tonight Show With Jimmy Fallon March 7, 2020 3:52 am ‘Tonight': Fittest of the Fit Challenge With Carrie Underwood Carrie Underwood and Jimmy Fallon compete against each other in a series of exercise games to determine who is the fittest of the fit. US & World Videos 3:00 Seth Rogen & Lauren Rogen recruit celebrity friends to help teach brain health education 2:38 Met Gala couples over the years: Priyanka Chopra & Nick Jonas & more 2:39 Melissa McCarthy reacts to Barbra Streisand's Ozempic question 1:56 Video shows supermodel Gisele Bündchen pulled over by Surfside Police 1:59 Supermodel Gisele Bündchen cries after being pulled over by Surfside Police