Julio Preciado y su Banda Perla de Pacifico is a banda singer based in Mazatlán, Sinaloa, Mexico. His music is based on norteño songs, such as those of Los Cadetes de Linares, and sometimes includes accordions in addition to bass instruments. Julio Preciado was a former member of La Banda el Recodo. Julio Preciado has been on a Mexican singing show called "Cantando Por Un Sueño". He also sang with the popular band La Banda Sinaloense El Recodo. On occasion, he also sings with a mariachi, as evident in the 2001 release of his CD, Entre Amigos. On February 2, 2009 he was assigned to sing the Mexican National Anthem in Mexicali, Baja California, Mexico, as a part of the Opening Ceremony of the Caribbean Baseball Series. He made several mistakes in the anthem lyrics and musical pace, being majorly booed by the audience. Some factors came into play during the failure to sing the national anthem properly since the background music did not play, so he decided to improvise by singing a capella. He decided to extend the improvisation. The audience's reaction caused the local sound to be shut off to protect Preciado from more serious actions by an angered public, so he could stop singing. In fact some people in the stadium assure that the singer was drunk.