Listen to Disco Inferno (Original Cast Recording) online. Disco Inferno (Original Cast Recording) is an English language song and is sung by Richard Calkin and "Saturday Night Fever" Original London Cast. Disco Inferno (Original Cast Recording), from the album Saturday Night Fever (Original Cast Recording), was released in the year 1998. The duration of the song is 3:31. Download English songs online from JioSaavn.