Del Castillo visited the U.S. for the first time in the 1980s as a recording artist with Mariachi Vargas de Tecalitlán, a renowned Mexican ensemble with roots dating back to the 1890s.

The 103rd LA County Fair runs May 2-26 with a theme of “Art Unleashed.” ...

It is the sound of a bunch of Texan high-school students playing mariachi, for love and for course credit. Instruction in mariachi—the most Mexican of genres—is popular and getting more so in ...