© @Copyright HELLO! Hello! Magazine The Duchess of Cambridge is revered for her classic style, from elegant royal gowns to her affordable high-street picks - but have you ever wondered what she wears to private special occasions?HELLO!'s editor-in-chief Rosie Nixon caught up with Needle & Thread founder Hannah Coffin during an Instagram Live in 2020, and she revealed that Kate has a secret collection of gorgeous party dresses.