The Duchess of Edinburgh surprised in leg-lengthening skinny jeans during a surprise TV appearance on Tuesday night in an episode of The One Show hosted by Clara Amfo and Roman Kemp ahead of the annual Children in Need telethon The Duchess of Edinburgh surprised in leg-lengthening skinny jeans during a surprise TV appearance on Tuesday night in an episode of The One Show hosted by Clara Amfo and Roman Kemp ahead of the annual Children in Need telethon