Kate Celebrates the Queen's 88th Birthday in Style

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Today, Queen Elizabeth II celebrated her official birthday with the Trooping the Colour parade. Her actual 88th birthday was on April 21, but her annual Trooping the Parade birthday celebration takes place every June, when there's a better chance of pleasant weather in notoriously - cloudy London.

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The Queen and Prince Phillip rode in a vintage carriage from Buckingham Palace, along The Mall with a sovereign's escort of Household Cavalry.

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Following the Queen, were the Duchess of Cambridge, the Duchess of Cornwall and Prince Harry in another coach.

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The Duke of York, Princess Eugenie and the Earl and Countess of Wessex followed them.

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In the final carriage, rode the Duke of Kent and Princess Alexandra.

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The Duke of Cambridge, Prince of Wales and the Princess Royal rode on horseback.

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Once the Queen took the salute of the Horse Guards, the Royal Family headed back to Buckingham Palace and gathered on the balcony to watch the traditional RAF fly past.

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Kate turned to one of her favorite designers and wore a bespoke, exquisitely detailed, cropped jacket and skirt by British fashion house Alexander McQueen. The ice blue suit had a brocade texture fabric which showed McQueen's signature skull trademark.

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If you're looking for something similar, McQueen has a snow white, silk - cotton Jacquard peplum jacket. It features a short stand-up collar with thin V neckline, long sleeves with four button cuffs and a peplum with cut-out front and pleated back.

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Completing her outfit, the Duchess wore a matching light-blue, bespoke Jane Taylor hat, her bespoke Alexander McQueen clutch, a six-pearl cluster brooch (not yet ID'd) and her Annoushka diamond and pearl drop earrings.