Dame Lesley Lawson (born 19 September 1949) is an English model, actress, and singer, widely known by the nickname Twiggy. She was a British cultural icon and a prominent teenage model during the swinging '60s in London. Twiggy was initially known for her thin build and the androgynous appearance considered to result from her big eyes, long eyelashes, and short pixie hair. In January 1966, aged 16, she had her hair colored and cut short in London at Leonard of Mayfair, owned by celebrity hairdresser Leonard. The hair stylist was looking for models on whom to try out his new crop haircut and he styled her hair in preparation for a few test headshots, and this eventually led to Hornby's career quickly taking off.

Source: Wikipedia