One of the main Brazilian rap and hip hop groups, Racionais MC's appeared in the outskirts of São Paulo in the 80's, introducing a political speech in favor of the outcast population from big Brazilian cities.
The year 1993 saw the release of their first full-length LP Raio X Brasil (X-Ray Brazil). The album includes several standout tracks including \"Fim de Semana no Parque\" (\"Weekend in the Park\"), a lyrical sketch of lowlifes in São Paulo; \"Mano na Porta do Bar\" (\"Man at the Bar Door\"), a skillful remix of Curtis Mayfield's \"Freddie's Dead\"; and the unexpected harmonica and piano jam \"Fio da Navalha\" (\"Razor Edge\"). Mano Brown won the Prêmio Sharp award for \"O Homem na Estrada\" (\"The Man on the Road\"), one of the album's other notable tracks. A 1994 show at the Vale do Anhangabaú in support of the album ended in a riot when police raided the show and arrested the group. The group was charged with inciting violence.