Harry Wayne Casey, better known by his stage name KC, is an American record producer, musician, and songwriter. He is best known for his band, KC and the Sunshine Band, as a producer of several hits for other artists, and as a pioneer of the disco genre of the 1970s.

KC and the Sunshine Band is an American disco and funk band that was founded in 1973 in Hialeah, Florida. Their best-known songs include the hits "Get Down Tonight", "That's the Way ", "(Shake, Shake, Shake) Shake Your Booty", "I'm Your Boogie Man", "Keep It Comin' Love", "Boogie Shoes", "Please Don't Go", and "Give It Up". The band took its name from lead vocalist Harry Wayne Casey's last name ('KC') and the 'Sunshine Band' from KC's home state of Florida, the Sunshine State. The group had five number one singles on the Billboard Hot 100 chart in the 1970s.