Pop music is a music genre that developed from the mid-1950s as a softer alternative to rock and roll and later to rock music. The term "pop song" is first recorded as being used in 1926 in the sense of a piece of music "having popular appeal". Starting in the 1950s the term "pop music" has been used to describe a distinct genre, aimed at a youth market, often characterized as a softer alternative to rock and roll. In the aftermath of the British Invasion, from about 1967, it was increasingly used in opposition to the term rock music, to describe a form that was more commercial, ephemeral and accessible. …
