If you thought TV shows in which audiences and juries judge musical acts were a relatively new phenomenon, you'd better think again. In the 1970s, such "festivals" were incredibly popular in Brazil. They were recorded before a live studio audience, and usually featured a number of elimination rounds. They also formed the springboard for the career of many a big-name star, such as Chico Buarque, Caetano Veloso, Roberto Carlos and Gilberto Gil. Appearing on such a program was no cakewalk, however: audiences could be as wild in their condemnation as in their appreciation of an artist. Extensive archive footage (including performances and behind-the-scenes interviews) from a turbulent final of the Festival of Brazilian Popular Music one evening in 1967 paints a fascinating picture, not only of the transformation of Brazilian music into real "festival" music, but also of a society starting to buck against the yoke of military rule.

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