If you are into mariachi and heavy metal, then Metalachi is just right for you. They have a unique style that mixes traditional mariachi roots with heavy metal. They were special guest on an El Paso, Texas radio station KLAQ 95.5 FM and had some specail performances live in the booth. Take a look.
They have also done other classic songs like Judas Priest - "Breaking the Law", Ozzy's - "Crazy Train" and Guns N' Roses - "Sweet Child O' Mine".