Limited translucent blue vinyl LP pressing. Includes Culture Factory obi strip. Fire of Unknown Origin is the eighth album by hard rockers Blue ÷yster Cult, originally released in 1981. It was produced by Martin Birch. The album, which included the Top 40 hit "Burnin' for You" (#1 on Billboard's Album Rock Tracks chart) represented a resurgence of the group's commercial standing after two albums with disappointing sales. Fire of Unknown Origin would be the final studio LP featuring the band's original lineup. The album continues B÷C's tendency to write quirky songs, from the title track (featuring lyrics by Patti Smith) to "Joan Crawford". Many of the songs were intended for the soundtrack of the animated film Heavy Metal. However, only the song "Veteran of the Psychic Wars", co-written by science fiction author Michael Moorcock, ended up in the film's final version and soundtrack.