Las Hermanas Navarro (Torreón, 1944 - h. 1965). Born in the Mexican state of Coahuila, Socorro and Rosina Navarro always liked music and since they were little girls they sang at home for friends and family, mainly the fashion genres of the 40s, that is, boleros, mambo and, later, cha -cha-chá They began to achieve some modest performances and in 1948 they took part in a competition for young talents organized by a radio station, which they won, which earned them the right to participate in various programs. Thanks to this, they gradually gained popularity, they signed up for Musart records, recorded some singles, and by the beginning of the 50s they were touring with the main stars of the music scene in Mexico. They become celebrities when, thanks to their grace and presence they are given a preponderant role in the most important television program in the country, Comics and Songs (1956), and even later they will have their own series, The Coffee of the Navarrese. Of course, the emergence of rock & roll influenced them remarkably and Comedians and songs witnessed that evolution, although rock tended to be tinged by orchestras that seemed to prevent their music from looking groundbreaking or rebellious. After all, they were women and society did not seem ready yet for some pioneering rockers, both in this genre and on television. They were signed by the powerful RCA label that publishes an album of versions of du-duá American and soft rock & roll, among whose theme is worth mentioning 16 tons or Sh-Boom (1958). Even his Mamy is sympathetic, a subject that could burst into a thousand pieces the tiny brain of more than one feminist dislocated in time. Then came El relojito (1959), version of Rock around the clock by Bill Haley, can be considered the first authentic rock & roll recorded by women in Mexico. But his biggest success was the mambo Pepe (1960), retrograde in music but groundbreaking and scandalous for the time in terms of his lyrics. He made them known throughout Latin America, especially in Argentina, where they triumphed in a big way, reaching their echoes to Europe. Tra shy attempt to try their luck in the movies, they also went to the dances with Ron, Coca-Cola and Twist (1961) or Twist of the parakeet (1962), among others. But the new fashions make that they move musically away from rock & roll to abandon it completely, moving to tropical rhythms like bossa nova, above all. The foundation of a family practically removed them from the world of entertainment, and Socorro died in 1995 of a heart attack when he was only 64 years old.