Psychedelic rock from Brazil! That's a really surprising position on this list. One could notice so many influences on this album (or maybe European and American bands were influenced by Os Mutantes). Few of the songs, especially those with piano solos reminded me of The Doors, for example. In general, the album was very experimental, with many weird noises and sounds, crazy vocals and unusual guitar notes. It didn't help that songs were in portuguese and I couldn't understand a word. And the uniqueness was a little bit too much for me.