If only all workouts were more like this. In early March 2020, Jimmy Fallon and Carrie Underwood showed off their physical prowess in a fitness challenge that made push-ups and planks look like the ...

Jimmy Fallon never stood a chance. During the March 16 episode of The Tonight Show, pop singer Demi Lovato stopped by to play a game of Musical Genre Challenge. Others who've excelled in the past ...