João Lutfi, known professionally as Sérgio Ricardo, born June 18, 1932, in
Marília, São Paulo, Brazil, was a Brazilian film director, composer, and singer.
He gained national attention in 1967 during the third Festival de Música Popular
Brasileira when his performance of “Beto bom de bola” drew boos from the
audience, leading him to break his acoustic guitar, throw it at the crowd, and
be disqualified. As a film composer, Ricardo wrote the score for Glauber Rocha's
film Black God, White Devil (1964). He died of heart failure on July 23, 2020,
in Rio de Janeiro, Brazil.