The Original Casuals are a lesser-known musical group from the late 1960s and early 1970s. Predominantly focusing on the doo-wop genre, they carved a niche for themselves with their soulful harmonies and lively performances. They are best known for their single "So Tough", which became a hit in 1967 and exemplified their signature sound. Despite their relatively short career, The Original Casuals have left a lasting imprint on the doo-wop genre with their unique approach to traditional music styles.