Kate's First Trooping the Colour When it comes to celebrating the queen's official birthday at Trooping the Colour, there is a strict "no ring, no bring" rule — no girlfriends or boyfriends are allowed on the balcony, just husbands or wives. In June 2011, Kate made her debut two months after her wedding day, and even jetted off to a friend's wedding straight after in the same outfit! Image Source: Getty / Anwar Hussein