Sergio Mendes & Brasil 66 - Mas que nada (introduced by Eartha Kitt / Something Special 1967) "Mas, que Nada!" is a song written and originally performed by Jorge Ben Jor on his debut album, which in a later cover version became the signature song of Sérgio Mendes. The song was voted by the Brazilian edition of Rolling Stone as the 5th greatest Brazilian song. The song was inducted to the Latin Grammy Hall of Fame. | The World of Jazz - The Original