Lollapalooza is a festival gifted to us by the grunge-happy, alt-rock boom of the '90s. It started out as a travelling festival that moved between major cities, which ended in 2005 when it settled in Chicago. In the '10s the festival started branching off internationally, first in Santiago (Chile), then in São Paulo (Brazil), and in Buenos Aires, Berlin, Stockholm, and Paris. The festival showcases a wide variety of musical styles, from indie rock and pop to hip-hop, to metal to electronic dance music. It is one of the biggest festivals in the country and its transformation from its origins to its current state has been regarded in some circles as an instance of the arc of corporatization alternative music has gone through over the years.