Otis Spann (March 21, 1930 – April 24, 1970) was an American blues musician whom many consider to be the leading postwar Chicago blues pianist. Born in Jackson, Mississippi, United States, Spann became known for his distinct piano style. Born to Frank Houston Spann and Josephine Erby. One of five children - three boys and two girls. His father played piano, non professionally, while his mother had played guitar with Memphis Minnie.