She was born on March 4, 1921, in Pirituba area of São Gonçalo do Amarante, Rio Grande do Norte in the Northeast Region of Brazil.

She died of a heart attack on March 27, 2012, in Rio de Janeiro, Brazil.

[1] Fonseca grew up in Natal, where she performed early and married the musician Naldimar Gedeão Delfim.

In 1941, the couple moved to Rio and Fonseca appeared in Renato Murce's show Papel Carbono.

In 1943 she recorded Apanhei-te, Cavaquinho and Urubu Malandro, which led to a successful career as a singer.