March Madness is the colloquial term for the National Collegiate Athletic Association (NCAA) Men's and Women's Basketball Tournaments, held annually in March and early April. It's a single-elimination tournament where 68 teams compete for the national championship. The event is renowned for its unpredictable upsets, often seeing lower-seeded teams (underdogs) defeat highly-ranked powerhouses, leading to thrilling finishes and broken brackets across the nation. Millions of fans, from avid college basketball followers to casual observers, fill out brackets attempting to predict the winners of each game, making it a cultural phenomenon that captivates sports enthusiasts and even those with little prior interest in basketball. The intensity, passion, and sheer drama of March Madness make it one of the most anticipated and exciting events in the American sporting calendar.