Some musicians start their career in the underground, and some of them come to the metro in the twilight of their professional lives. This November, both of them will be given a chance to demonstrate their unique talent at a huge international event arranged by Red Bull and attract the biggest audience they might have ever seen in their life. Some of the best so-called buskers, or subway musicians, from all over the world will head to Red Bull Sounderground—the first International Festival of Underground Station Musicians, hosted in the hot and rhythmic city of São Paulo, Brazil.