The Four Shells were an American soul group that originated in the mid-1960s, known for their smooth harmonies and emotive performances. The group, featuring lead singer Ronnie Williams, had a notable hit with "Hot Dog," produced by Eddie Floyd for Stax Records. Their style is characterized by a blend of doo-wop and early soul, with a distinctive southern touch. Despite a limited discography, The Four Shells left a lasting impression on the soul music scene and are considered part of the foundation of the Memphis Soul sound.