Daughter of Rui Roberto Nunes and Mary Lúcia Martins Nunes, the artist came from the outskirts of Rio de Janeiro and encouraged by her parents, she has been involved with art since she was 6 years old, she began to gain notoriety from her SLAM (urban poetry competitions) video went viral on the internet, from then on she released some singles with emphasis on Noite de Verão and acted in movies and soap operas.

Gabz debuted in cinema in 'Xuxa: a Girl's Dream', playing Thayane. Soon after, she played Bia, in the fourth season of 'Teca na TV'. In 2008, she played Gracinha in the remake of 'Ciranda de Pedra', in 2009 she made a participation in 'Seize the Day'. However, it was only in 2018 that Gabz returned to action. She played Júlia in 'Ana e Vitória', and Gisele in 'Tudo por um Popstar'.

In addition, she released three singles, "Do Batuque ao Bass", "O Baile é Nosso" and "Bota a Cara". In 2019, she released the single "Nada Vai nos Parar" featuring Baco Exu do Blues, and "Noite de Verão". She played Jaqueline in the twenty-seventh season of 'Young Hearts'. On October 13, 2021, she started recording her first romantic comedy An 'Unforgettable Year – Autumn', directed by Lázaro Ramos for Prime Video.