Los Diablos, a Spanish pop group formed in 1968 in Hospitalet de Llobregat,
Barcelona, began as Los Diablillos del Rock before adopting their final name
under the insistence of lead vocalist Agustín Ramírez. The duo of Agustín
Ramírez and guitarist Enrique Marín expanded to a quartet with drummer Emilio
Sancho and bassist Amado Jaén, and they recorded early hits such as "Gracias al
amor" and "Brutal". Their breakthrough came with the single "Un rayo de sol" in
1970, which sold 450,000 copies and earned a gold disc, catapulting the band to
national prominence. Throughout the early...