Big Bands are large musical ensembles that typically consist of 10 or more musicians. They primarily play jazz music and are characterized by sections of brass, woodwinds, and rhythm instruments. Popular during the 1930s and 1940s, Big Bands were known for their lively performances and danceable rhythms, making them a staple in ballrooms and dance halls. Famous Big Bands include those led by Duke Ellington, Count Basie, and Glenn Miller. These bands often featured talented soloists and vocalists, contributing to their unique sound. The Big Band era significantly influenced the development of jazz and popular music, leaving a lasting legacy in American culture.