Britons are out in full force this week to honor their beloved Queen Elizabeth II and her Diamond Jubilee celebrations. The event commemorates the queen's 60-year reign.

On Sunday Kate Middleton, formerly known as Catherine, Duchess of Cambridge, attended the river pageant flotilla in London. Over 1,000 boats mustered on the River Thames. It was one of the largest flotillas ever assembled on the river. Those Brits love their pomp and circumstance (and we dig it too!)

Kate wore a simple red dress with a matching headpiece and beige pumps. The ensemble was conservative yet attractive. We suspect the duchess could wear a garbage bag and still look beautiful.

See more photos of Kate and the royal party...