The ongoing displacement of Mexicans into the United States impacts not only American economic conditions but the country’s social, cultural, and intellectual configurations as well. Artistic and academic voices shape and enrich the multicultural diversity of both countries, as immigrant Mexican artists and their musics prove instrumental to the forming of a self-critical society compelled to value and embrace its diversity. Despite conflicting political reactions on this complex subject of legal and illegal immigration, undeniable is the influence of Mexican musical expressions in the United States and Mexico, at the border and beyond.