Paul Butterfield was an American blues harmonica player and singer, born on December 17, 1942, in Chicago, Illinois. He is best known for leading the Paul Butterfield Blues Band, which was one of the first racially integrated blues bands. His music blended traditional blues with rock elements, helping to popularize the genre in the 1960s. Butterfield's unique harmonica style and powerful vocals earned him critical acclaim and a dedicated following. He played a significant role in the Chicago blues scene and influenced many musicians, including Bob Dylan and Eric Clapton. He passed away on May 4, 1987, but his legacy continues to inspire blues artists today.