Latin rock is a term to describe a subgenre blending traditional sounds and elements of Latin American and Hispanic Caribbean folk with rock music. However, it is widely used in the English-language media to refer any kind of rock music featuring Spanish or Portuguese vocals. This has led to controversy about the scope of the terminology. Latin rock should not be confused with "rock music from Latin America" or rock en español. It's also closely related to the Latin alternative scene (which combines Latin elements with alternative rock, pop, electronic music, indie or hip hop among others) a term often used to refer the same phenomenon. History Origins (1950s–1960s) Rock and roll music of the 1950s originated from a variety of sources including rhythm and blues, blues, gospel, country, bluegrass, western swing, and Tin Pan Alley pop music. Also, there was some influence of the traditional Latin music. Caribbean rhythms like calypso were used in surf music; and there were some rock and roll songs based on cha-cha-chá or mambo. Latin rock was born in the United States during the late 1950s, though the term was not yet created. In 1958 an adaptation of a Mexican folk song called "La bamba" was recorded by the Chicano rock artist Ritchie Valens. That same year, instrumental rock band The Champs released "Tequila", a song that incorporates clear Latin sounds and was composed by the band's chicano saxophonist Danny Flores). During the 1960s, there were more examples of rock artists like Thee Midniters, Question Mark & the Mysterians, Sam the Sham and the Pharaohs or Sir Douglas Quintet that included Latin rhythms on their compositions. Also Chicano rock became popular in California; although not all of these can be considered early Latin rock artists since many of them lacked the Latin folk influences. In some Latin American countries, Latin rock started to develop as well. In Peru, Colombia, Argentina, but specially Brazil where Tropicália appeared in the mid-1960s with the first releases of Os Mutantes, Gal Costa and Caetano Veloso from 1967 to 1970, a music movement that merged rock music with bossa nova, psychedelia and other Latin elements, and this can be regarded as the main root of the genre. "Latin rock" term born (1970s) In 1969, after the release of the debut album by Santana, the term "Latin rock" appeared in the US and other parts of the world. It was