The debut album by Frank Zappa's The Mothers of Invention, released in 1966.
They thoroughly dismantled the commercial rock and pop stereotypes of the time, boldly fusing rock, blues, R&B, avant-garde, social satire, political criticism, and collage sound.
This album, a mix of chaos and satire, intelligence and madness, is a timeless classic that symbolizes the American counterculture spirit of the 1960s.