The first punks appeared on streets of London in the late 1970s. They did't use to spend a lot of money on clothrs. Their favourite colour was black. They wore tight trousers with holes and baggy T-shhirts with offensive words and expressions on them. They had dyed hair - pink or green or blue - and they used to wear dog collars as necklaces and safety-pins as earrings. They wanted to shock people and break the rules.