Francis Warren Nicholls, Jr. (January 18, 1955 – March 31, 2014), better known as Frankie Knuckles, was an American DJ, record producer and remixer. He played an important role in developing and popularising house music in Chicago during the 1980s, when the genre was in its infancy.
In 1997, Knuckles won the Grammy Award for Remixer of the Year, Non-Classical. Due to his importance in the development of the genre, Knuckles was often called "The Godfather of House Music".
His debut album Beyond the Mix, released in 1991 on Virgin Records, contained what would be considered his seminal work, The Whistle Song, which was the first of four number ones on the US dance chart.
Each year, August 25 marks Frankie Knuckles Day and to celebrate the occasion and the unquestionable history of this classic cut, Eric Kupper himself via Hysteria and in collaboration with the Frankie Knuckles Foundation and SoSure Music, has reproduced and remastered the original demo mix that he handed to Frankie on tape in a studio session all those years ago, for a special one-sided release. This design is a representation of the vinyl label released in August 2020.