New Grass Revival was an American bluegrass band formed in 1971, known for blending traditional bluegrass with elements of rock, jazz, and folk music. The group featured talented musicians, including Sam Bush, John Cowan, Béla Fleck, and Pat Flynn, who contributed to its innovative sound and dynamic performances. The band gained popularity throughout the 1970s and 1980s, releasing several albums that showcased their unique style. They played a significant role in the progressive bluegrass movement, influencing many artists and helping to expand the genre's audience. New Grass Revival disbanded in 1989 but left a lasting legacy in the music world.