Born in Barreiro, Portugal, Guinot released two EPs, "La mère sans enfant" and "Balada do negro só" in the late 1960s, then took a long break from the music industry. She returned in 1981 performing a song, "Um adeus, um recomeço", in the Portuguese Eurovision selection, "Festival da Canção", where she finished third. Her second attempt in "Festival da Cançao" came in 1984, when her song "Silêncio e tanta gente" ("Silence and So Many People") emerged the winner. Guinot went forward as the Portuguese representative in the 29th Eurovision Song Contest, held in Luxembourg City on 5 May. "Silêncio e tanta gente", a reflective ballad with Guinot accompanying herself on piano, was performed last in the running order, and provided a low-key ending to the contest. It finished in 11th place of the 19 entries.