Mexican rock music, often referred to in Mexico as rock nacional ("national rock"), originated in the 1950s with covers of standards by Chuck Berry, Elvis Presley and The Everly Brothers, among others, bands such as Los Rockets, Los Twisters, Los Teen Tops, Los Rebeldes del Rock, Los Locos del Ritmo, Los Crazy Boys, Los Nómadas, and Javier Bátiz soon arose with original compositions, often in English. The group "Los Nómadas" was the first racially integrated band of the 1950s. Their lead guitarist Bill Aken (Adopted son of Mexican movie actress Lupe Mayorga, said adoption making Aken the cousin to Ritchie Valens) wrote most of their original material, including the raucous "Donde-Donde", and co-wrote the material for their "Sounds Of The Barrio" album that is still being sold by various In