Brazil's presidential election has two very different soundtracks

Ahead of Sunday's presidential runoff in Brazil, some of the country's biggest musicians are taking political sides. Several sertanejo stars - Brazil's version of country music - are backing Flavio Bolsonaro, while many samba and traditional Brazilian pop artists are rallying around President Luiz Inacio Lula da Silva. But these musical alliances have deep historical roots, and the divisions aren't as clear-cut as they seem. The World's Tibisay Zea explores what Brazil's political soundtrack reveals about its changing society.