found: Cha-cha slide, p2000: (Casper)
found: Radio Disney jams 8 [SR] p2006: container (Mr. C the Slide Man)
found: All music guide WWW site, Apr. 10, 2007 (Mr. C the Slide Man; Chicago-based Willie Perry (aka Casper, aka Mr. C the Slide Man); spawned a regional dance craze with his infamous "Cha-cha slide")
found: Wikipedia, Jan. 31, 2013 : DJ Casper article (DJ Casper (born Willie Perry Jr., May 31, 1971 Chicago, Illinois, United States) is an American songwriter and DJ ; known as Casper, Mr C - The Slide Man or simply Willie)