Grupo Frontera and Grupo Firme are contemporary Mexican regional music ensembles known for popularizing different branches of norteño, regional Mexican, and banda styles. Grupo Frontera, formed in the United States by musicians of Mexican heritage, blends norteño, tejano, and cumbia influences with modern production and romantic lyricism, gaining prominence in the early 2020s. Grupo Firme, originating in Mexico and active since the late 2010s, performs within the banda and regional Mexican tradition, notable for high-energy arrangements, brass-driven instrumentation, and collaborations across the regional scene. Both groups are associated with contemporary interpretations of traditional Mexican genres and have achieved widespread commercial success.