Andrés Ciro Martínez is an Argentine musician and singer-songwriter, best known as the lead vocalist of the rock band Los Piojos. Born on January 11, 1973, in Buenos Aires, he gained fame in the 1990s with the band, which became one of the most popular rock groups in Argentina. In addition to his work with Los Piojos, Ciro has pursued a successful solo career, releasing several albums that showcase his distinctive style and lyrical talent. His music often blends rock with elements of cumbia and folklore, appealing to a wide audience in Argentina and beyond.