Pop rock is a music genre which mixes a catchy pop style and light lyrics in its (typically) guitar-based rock songs. There are varying definitions of the term, ranging from a slower and mellower form of rock music to a subgenre of pop music. The detractors of pop rock often deride it as a slick, commercial product, less authentic than rock music.
Much pop and rock music has been very similar in sound, instrumentation and even lyrical content. The terms "pop-rock" and "power pop" have been used to describe more commercially successful music that uses elements from, or the form of, rock music. Pop-rock has been defined as an "upbeat variety of rock music represented by artists such as Elton John, Paul McCartney, The Everly Brothers, Rod Stewart, Chicago, and Peter Frampton."