Rock and roll emerged as a defined musical style in America in the 1950s, though elements of rock and roll can be seen in rhythm and blues records as far back as the 1920s. Early rock and roll combined elements of blues, boogie woogie, jazz and rhythm and blues, and is also influenced by traditional Appalachian folk music, gospel and country and western. Chuck Berry, Bo Diddley, Fats Domino, Ray Charles, The Everly Brothers, Buddy Holly and Elvis Presley were notable performers in the 1950s. The Beatles were part of the "British invasion" of the USA in the 1960s. In 1951 the words "rock, roll" were used in a song called "60 Minute Man", which was banned due to its implications. By 1953 such ballads as "Earth Angel" and "Gee" were played by notable disc jockeys in Cleveland and New York as Allen Freed and Murray the K. By 1956, Dick Clark had one of several popular Television programs "American Bandstand" to show teenagers dancing to the new kind of music aimed especially at teens and adolescents.Rock music can be as carefully crafted as a song by Queen, or an album produced by Phil Spector, or as straightforward as a three-chord composition by The Ramones, or as poetic as a song written by Bob Dylan. See rock musical and rock opera.