More than just the undisputed king of Mexico's traditional ranchera music, Vicente Fern+índez -- "El Idolo de Mexico" -- is one of that country's most recognizable and influential cultural icons. Since his emergence in the mid-'60s, Fern+índez's popularity has escalated to the point that his status among Mexicans and Mexican-Americans has been likened to that of Frank Sinatra and Elvis Presley in the United States. His concerts in both Mexico and the U.S. routinely sell out despite a near-total dearth of non-Latino media coverage, and his 100-plus albums have sold in excess of...