Chicano punk

Chicano rock is rock music performed by Mexican American (Chicano) groups or music with themes derived from Chicano culture. Chicano Rock, to a great extent, does not refer to any single style or approach. Some of these groups do not sing in Spanish at all, or use many specific Latin instruments or sounds. The main unifying factor, whether or not any explicitly Latin American music is heard, is a strong R&B influence, and a rather independent and rebellious approach to making music that comes from outside the music industry.

Chicano rock is the distinctive style of rock and roll music performed by Mexican Americans from East L.A. and Southern California that contains themes of their cultural experiences. Although the genre is broad and diverse, encompassing a variety of styles and subjects, the overarching theme of Chicano rock is its R&B influence and incorporation of brass instruments like the saxophone and trumpet, Farfisa or Hammond B3 organ, funky basslines, and its blending of Mexican vocal styling sung in English.

There are two undercurrents in Chicano rock. One is a devotion to the original rhythm and blues and country roots of Rock and roll. Ritchie Valens, Sunny & the Sunglows, The Sir Douglas Quintet, Thee Midniters, Los Lobos, Malo, War, Tierra, and El Chicano all have made music that is heavily based on 1950s R&B, even when general trends moved away from the original sound of rock as time went by.

...
Wikipedia