Complex sentence: The full Coven band then re-recorded the song for their self-titled MGM album, which displayed their whited-out faces on the cover, contrived again by the film's producer Tom Laughlin.
Split into simpler sentences: The full Coven band then re-recorded the song for their MGM album. Thus the MGM album containing a second version of this song displayed their whited-out faces on the cover, contrived again by the film's producer Tom Laughlin.