The singer becomes famous in the 1960s when she spearheaded the Tropicália movement alongside with mate stars Gilberto Gil and Caetano Veloso. Brazilian singer and music icon Gal Costa dies at 77. Her team mates did not reveal the cause of her death. The singer-songwriter born in Bahia, a center of Afro-Brazilian culture, has recorded more than 30 albums during her lengthy career. Gal Costa had recently cancel her concerts on doctor’s prediction after an operation. However, she had also planned to return to the stage next month in São Paulo. A number of people praised Costa on social media, including President-elect Luiz Inácio Lula da Silva. He also called her the world’s greatest singer. According to the president, she played an important role in establishing Brazilian music internationally. He also said that Millions of Brazilian were rocked by her talent, technique, and audacity. Brazilian singer and music icon Gal Costa dies at 77.