William Perry Jr. (May 31, 1965 – August 7, 2023), better known as DJ Casper (also known as Mr. C the Slide Man), was an American disc jockey.[1] Born and raised in Chicago, he was known as "Casper" due to frequently being clad in all white attire on stage.[2] He was best known for his 2000 single "Cha Cha Slide".
Perry's first and onlyhit record, "Casper Slide Pt. 1" – also known as "Cha Cha Slide" – was created by Perry for his nephew, who worked as a personal trainer at a Bally Total Fitness in 1998.[3] After the song grew in popularity as an aerobic exerciseatfitness clubs and PE in schools, Casper created a second song in 2000, titled "Casper Slide Pt. 2", which was picked up by Elroy Smith at Chicago's radio station, WGCI-FM.[4]
The song became a hit in Chicago in 2004, when the city's M.O.B. Records record label became involved as well, helping Perry create a whole compilation album with other Chicago-based artists to promote the dance.[5] "Cha Cha Slide" was later picked up by Universal Records.[3]
Perry made an appearance as a DJ in a season 6 episode of Orange Is the New Black, in Crazy Eyes' hallucination of the prisoners and guards line dancing to the Cha Cha Slide.[6]
In January 2016, Perry was diagnosed with kidney cancer and neuroendocrine cancer.[7][8] After an unsuccessful surgery the same month, he began chemotherapy.[8] In an interview in July 2018, he stated he was in remission.[9] In 2019, Perry stated that he beat his kidney and liver cancers and said he was a changed man, stating "that was God's way of just slowing me down just a little bit."[10]
Perry died of kidney and liver cancer on August 7, 2023, at the age of 58.[11][12]
