Argentine singer Juan Sanchez dies at age 64 following surgery complications , his doctor said . Performance style in the 1980s drew comparisons to Elvis Presley . ` ` Sandro '' was considered one of pioneers of Latin rock music movement . Singer also called ` ` El Gitano '' or ` ` The Gypsy '' because of his family 's Roma roots .
Argentine singer Roberto Sanchez dies at age 64 following surgery complications , his doctor says . Performance style in the 1960s drew comparisons to Elvis Presley . `` Sandro '' was considered one of pioneers of Latin rock music movement . Singer also nicknamed `` El Gitano '' or `` The Gypsy '' because of his family 's Roma roots .