Splash News

It's not often that Britain's photogenic and popular royal heirs, Prince William and Prince Harry, are upstaged but that's exactly what happened at a charity polo match Sunday.

The brothers were walking off the field at the International Audi Polo event in Gloucestershire, England, when a young female admirer captured what she thought was the picture of a lifetime, an up-close shot of the two princes happily obliging their fan with smiles for the camera.

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The female fan instead became the story after her over-the-top reaction to nabbing a photo of the princes on her iPhone was captured by another photographer. The girl can be seen throwing her hands into the air in excitement as Prince Harry and Prince William continue walking right next to her. A second photo shows her celebrating with a friend just inches behind the two princes, who seem to smile knowing what is going on behind them.

Prince William, 30, and Prince Harry, 29, competed against each other in a match at the polo event, part of the Gloucestershire Festival of Polo.

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Prince William's wife, Duchess of Cambridge Kate Middleton, skipped the event after making her last public appearance before her maternity leave at the Queen's Trooping the Color parade on June 14.

William and Kate, 31, are expecting their first child, the royal heir, in mid-July.