Os Mutantes (album)

When performing their dig at Brazil's military dictatorship entitled "É Proibido Proibir" (It is Forbidden to Forbid) at the III Festival Internacional da Canção, the audience booed them.

[10] The band covered "Once Was A Time I Thought" (translated and renamed “Tempo No Tempo”) by California pop act The Mamas and the Papas, and rendered a version of “Le Premier Bonheur Du Jour” by French yé-yé singer Françoise Hardy, which singer Rita Lee embellished with the sound of an aerosol can shooting out bursts of FLIT bug spray.

[9] Cover versions of Jorge Ben's "A Minha Menina", Gal Costa's "Baby," and the Sivuca/Miriam Makeba international baião-inspired hit "Adeus Maria Fulô" also appeared on the record in new psychedelicized arrangements.

"[3] Crawdaddy stated that non-Portuguese speakers "might have no idea what the psychedelic popsters are singing about, but the wild inventiveness and playful hooks of their debut speak loudly enough.

"[4] Author John Bush labelled the album "crazed psychedelic pop" and a "raucous, entertaining mess of a record featuring long passages of environmental sounds, tape music, and tortured guitar lines no self-respecting engineer would've allowed in the mix.