I don't know exactly how to answer this question cause there's a lot of kinds of people in Brazil.
We got tiny and fat boys and girls who, usually, don't like their bodys and feel insecure about a lot of things, a lot of teens have been getting sick with problems like depression and anxiety. we dress as we want, the most of us are used with hot climates so we're used to use clothes that don't cover so much of our bodys, it unfortunately is used as a false justification for some people to harass especially girls, the good point is we're working on our society for change about that.
about musical taste there's a lot. there's teens who like: funk; trap (it seems sometimes with rap); rap and hip-hop; sertanejo (love and break ups' songs ); international music; electronic, etc