Sam McKnight (born 1955) is a hairstylist known for his work with celebrities including Princess Diana, Kate Moss, and Lady Gaga, and for his collaborations with fashion houses like Chanel, Fendi, Balmain, and Burberry.McKnight was born in New Cumnock, Ayrshire into a working-class family. His father was a miner and his mother was employed by the local co-op. He initially worked as a window cleaner, van driver and trainee teacher before becoming an assistant at a local hairdressers in his native Scotland. He moved to London in the early 1970s. Wikipedia