Purgatory Dance Party  Purgatory Dance Party is the debut album by Polkadot Cadaver released via internet pre-sales on November 17, 2007, with a street date of November 27, 2007. The cover art is a reference to the John Travolta film "Saturday Night Fever". Dog Fashion Disco had earlier covered the theme tune to another Travolta film, "Grease". All songs written by Polkadot Cadaver. The song "Sole Survivor" is in fact only 4:30 long; the track then contains 5 minutes of silence, and from 9:30 onwards it consists of a looped voice saying the word "Satan".