In the 1970s, "festivals" were incredibly popular in Brazil, as 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 stars, 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 performa...