• Hair stylist Sam McKnight reveals his favourite A-list moments

    He's tended to the hair of the most famous women on the planet and now, in celebration of his new book and an exhibition at London's Somerset House, Sam McKnight shares some of his favourite A-list moments with Beauty Editor Nadine Baggott. Find the full story in HELLO! on sale now. Over his 40-year career, Sam McKnight – the world's most in-demand hairstylist – has racked up more Vogue covers than any of his rivals and his influence is huge. CLICK TO VIEW GALLERY Hairstylist Sam McKnight is releasing a book documenting his career More used to working his magic