A Merry-achi Christmas is a holiday mariachi concert that pairs Grammy-nominated Mariachi Sol de México de José Hernández with Mariachi Reyna de Los Angeles, presenting traditional mariachi repertoire alongside mariachi arrangements of beloved Christmas classics. The production takes place at the Cerritos Center for the Performing Arts in Cerritos, California, and is notable for its festive fusion of Mexican musical traditions with seasonal favorites such as mariachi-style adaptations of The Nutcracker Suite and Feliz Navidad.