The Osborne Brothers were an American bluegrass duo formed in the 1960s, consisting of siblings Bobby Osborne and Sonny Osborne. They are known for their tight harmonies and innovative style, blending traditional bluegrass with elements of country music. Their hit songs, such as "Rocky Top," helped popularize bluegrass music beyond its regional roots. Throughout their career, the Osborne Brothers received numerous awards, including induction into the International Bluegrass Music Hall of Fame. They influenced many artists in the genre and contributed to the growth of bluegrass music through their performances and recordings, leaving a lasting legacy in American music.