Punk rock developed in New York City in the 1970s by musicians looking to protest or rebel against the norms of society. Punk rock is often noted for being louder, harder, and cruder than classic rock music and often comes from a place of anger and utilizes crude language or controversial topics in their songs. Punk rockers embrace a "Do It Yourself" attitude and aim to achieve their goals with their own community as their primary resource. While the punk rock of the 1970s was fast, hard-edged, and controversial to begin with, the 1980s brought in a new wave of intensity called "hardcore," which was extremely influenced by Heavy Metal. By the 1990s, punk rock began to intermingle with pop music to develop a lighter-style called "pop punk," which garnered more mainstream success while drawing on similar themes.