If you've ever filled out a bracket or heard someone excitedly talk about college basketball this time of year, you're experiencing March Madness. But there's a surprising level of strategy and heart behind the upsets and buzzer-beaters you'll learn about.
March Madness is trending because it's the biggest event in U.S. college basketball, captivating millions annually.
Every spring, 68 college basketball teams compete in a single-elimination tournament for the national championship.