Lonesome Sundown, born Cornelius Green III, was an influential American blues musician active during the 1950s and 60s. Primarily a guitarist and singer, Sundown's distinctive style was characterized by a brooding, haunting vocal delivery and intricate guitar work. His music, which often explored themes of despair and disillusionment, was deeply rooted in the swamp blues tradition of Louisiana. His most notable recordings include "My Home Is a Prison" and "Leave My Money Alone", both of which have had a significant impact on the blues genre.