If only all workouts were more like this. In Hang Ten, Fallon and Underwood raced across the floor, matching their hands and feet with pictures of hands and feet on the floor. It was sort of like ...

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 ...