The punk subculture includes a diverse array of ideologies, fashion, and other forms of expression, visual art, dance, literature and film. It is largely characterised by anti-establishment views and the promotion of individual freedom, and is centred on a loud, aggressive genre of rock music called punk rock. Its adherents are referred to as "punks".
There is a wide range of punk fashion, including deliberately offensive T-shirts, leather jackets, Dr. Martens boots, hairstyles such as brightly coloured hair and spiked mohawks, cosmetics, tattoos, jewellery and body modification. Women in the hardcore scene typically wore masculine clothing.
An important aspect of punk was creating explicitly outward identities of sexuality. Everything that was normally supposed to be hidden was brought to the front.
The punk subculture emerged in the United Kingdom, Australia, and the United States in the mid-1970s. Exactly which region originated punk has long been a matter of controversy within the movement. Early punk had an abundance of antecedents and influences, and Jon Savage describes the subculture as a "bricolage" of almost every previous youth culture in the Western world since World War II, "stuck together with safety pins". Various musical, philosophical, political, literary and artistic movements influenced the subculture.