Post-punk emerged from punk and had a more experimental sound, with bands like New Model Army and Nick Cave and the Bad Seeds taking punk music in new directions. Oi! music was a working-class punk subgenre promoted unity between punks and skinheads, as performed by bands like Sham 69. Anarcho-punk bands like Crass had anarchist lyrics. Hardcore punk from North America was very fast and aggressive, as played by Dead Kennedys and Bad Religion, some rejecting destructive lifestyles. Pop punk combined punk with pop music styles, including bands like Green Day and Blink-182.
