The daughter of Alcibíades Guaraná Monjardim and Inah Figueira, Matarazzo showed talent at a young age and by twelve had written a samba song, which later became a hit from her first album.

[citation needed] Her tour to Buenos Aires was a great success, and extended to Chile and Uruguay, but Matarazzo had an affair with the show's producer, Ronaldo Bôscoli, a journalist and composer linked romantically to bossa nova's muse Nara Leão.

Upon her return to Brazil, Matarazzo continued to blend her "broken love affair" trademarks with the more current festival style and occasional bossa nova hits.

She died in a car crash in 1977, on the Rio-Niterói bridge, which connects the cities of Rio de Janeiro and Niterói over the Guanabara Bay.

[2] In January 2009, 32 years after her death, a miniseries about her life was broadcast on Brazilian television and spanned two new books about one of Brazil's most charismatic divas.