Zélia Duncan, born Zélia Cristina Gonçalves Moreira, is a Brazilian singer-songwriter.

Os Mutantes are an influential Brazilian rock band that were linked with the Tropicália movement, a dissident musical movement during the Brazilian dictatorship of the late 1960s. The band is considered to be one of the main groups of Brazilian rock. Heavily influenced by Anglo-American psychedelic pop, they bridged Brazilian sensibilities together with studio trickery, feedback, distortion, and musique concrète. They released their now-acclaimed self-titled debut album in 1968.