The Paul Butterfield Blues Band was an American blues band formed in 1963 in Chicago, Illinois. Led by harmonica player and vocalist Paul Butterfield, the band was known for its unique blend of blues, rock, and jazz influences. They played a significant role in popularizing blues music in the 1960s and were one of the first white bands to gain recognition in the predominantly African American blues scene. The band's self-titled debut album, released in 1965, featured classic tracks like "Born in Chicago" and showcased their powerful musicianship. The lineup included notable musicians such as guitarist Mike Bloomfield and drummer Elvin Bishop. The Paul Butterfield Blues Band influenced many artists and contributed to the development of the blues-rock genre.