Flamengo's anthem history features both a formal 1919 composition by Paulo Magalhães and a beloved 1945 Carnival-style march by Lamartine Babo, which became the iconic popular song. While the official hymn is seldom heard, the "Marcha do Flamengo" with its famous opening line is the passionate anthem sung by fans. Hino do Clube de Regatas do Flamengo - Wikipédia