Argentine rock (known locally as rock nacional , "national rock" in the sense of "local", "not international") is rock music composed or performed by Argentine bands or artists mostly in Spanish. Argentine rock began by recycling hits of English-language rock & roll. However a rising trend of composing new songs mostly in Spanish can be traced at late 1960s, when several garage groups and aspiring musicians began composing songs and lyrics that related to local social and musical topics. Since then, Argentine rock started a continued and uninterrupted evolution through the 1970s and into the 1980s. A distinguishing trait of Argentine rock is its insistence on Spanish language lyrics. Argentine rock today is a blanket term describing a number of rock styles and sub-cultures within Argentina. Related genre Several terms are used to describe the artistic expressions of rock and roll in Iberian America, which are often confused or given different meanings in different countries. Generally, these terms are: Rock en Español: includes all rock sung in Spanish. Latin Rock: includes all expressions of rock and roll in Latin American countries, the Caribbean, and the Latin American community of the United States. In addition to rock sung in Spanish, this includes rock sung in English, Portuguese, French, and other Latin-based languages. This generally refers to a cultural movement that began in the 80's throughout Latin America. Rock Nacional in Argentina: refers to a movement of progressive music that rapidly gained popularity in 1967 with the song "La Balsa". Argentine rock: refers to all expressions of rock performed in Argentina, regardless of language and subgenre. 1958−1964: Early rock and roll Rock and roll first began to appear in Argentina in 1956 after the genre was created in the United States in 1954-1955, based largely on rhythm and blues and country and western. Elvis Presley and Bill Haley (who visited Argentina in 1958) awakened the interest of several Argentine artists. The most notable among Argentine garage bands which sprung up in this period was Sandro y Los de Fuego, who recorded a successful series of Spanish language covers of American rock and roll hits, and attained commercial popularity. Sandro would soon embark on his own contemporary pop standards career that would make him popular. Others include Eddie Pequenino, Los Cinco Latinos and Billy Cafaro. 1964−1975: The classic period The first few years of rock music in Argentina were confined to cover bands.