Punk rockers reject mainstream pop and rock music, usually from working-class backgrounds and have a DIY attitude. Their bands are smaller than traditional rock and roll bands, but their sound is not as noisy.
Punk is a genre of rock and roll characterized by extreme and often deliberately offensive expressions of social discontent, even if it means upsetting or offending people.
Punk scenes developed in London and New York in the early 1970s, with punk rock musicians breaking the rules of music to express their anger and create their own unique sound.