Soft rock emerged in the late 1960s as a softer, more melodic alternative to hard rock. It uses elements of folk rock and focuses on themes of love and relationships. Major soft rock artists of the 1970s included Carole King, Cat Stevens, The Hollies, and James Taylor. Soft rock songs tended to feature acoustic guitars, pianos, and saxophones alongside faint electric guitars. The style grew in popularity through the 1970s before evolving into adult album alternative rock by the 1980s.