Luis Alberto Spinetta (23 January 1950 – 8 February 2012), nicknamed "El Flaco" (Spanish for "skinny"), was an Argentine singer, guitarist, composer, writer and poet. One of the most influential rock musicians of Argentina, he is widely regarded as one of the founders of Argentine rock, which is considered one of the first incarnations of Spanish-language rock. Born in Buenos Aires, he was the founder of several iconic rock bands including Almendra, Pescado Rabioso, Invisible, Spinetta Jade, and Spinetta y Los Socios del Desierto.
