Chicago-based Willie Perry (aka Casper, aka Mr. C the Slide Man) spawned a regional dance craze with his infamous "Cha-Cha Slide," a dance anthem much in the spirit of more recognized anthems such as "Macarena" and "Electric Slide." As a personal trainer at Bally's, Perry developed a popular aerobic dance exercise based largely on his background as a stepper (he won Chicago's annual World's Largest Steppers Contest nine times). Years later, Chicago radio station WGCI joined forces with Perry to record a song for his dance; the station also helped promote the song with advertis...