"Car Wash" is a song by American soul and R&B band Rose Royce. Songwriter(s) Norman Whitfield Producer(s) Norman Whitfield. It was the group's debut single and one of the most notable successes of the 1970s disco era. "Car Wash", the theme of the 1976 film of the same name, was Rose Royce's most successful single and the lead single from their debut studio album, the Car Wash soundtrack. Reaching number one on the US Billboard Hot 100 and Hot Soul Singles charts, "Car Wash" also peaked at number