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Rock'a'ula is the only studio album by Brazilianrock band Os Cascavelletes, released in 1989 by Odeon Records. Produced by former Barão Vermelho bassist Dé Palmeira, it is considered a seminal work of the Rio Grande do Sul rock scene of the mid-1980s/early 1990s and spawned numerous hits which were very popular at the time of their release and are still remembered to this day, such as "Jessica Rose" (which originally appeared as a live bonus track on the band's 1988 self-titled EP), the infamous "Eu Quis Comer Você", "Lobo da Estepe" (which was inspired by Hermann Hesse's 1927 novel Steppenwolf) and "Nêga Bombom", included in the soundtrack of the 1989–90 Rede GlobotelenovelaTop Model. It was the band's first release with keyboardist Humberto Petinelli and without original bassist Frank Jorge, who left them the year prior to focus on his other project, Graforreia Xilarmônica.