Just a few days ago President Barack Obama and First Lady visited London and stopped by Buckingham Palace to meet with Prince William and his wife Kate Middleton.

The cap-sleeved, caramel-colored form-fitting dress that the duchess wore when she and Prince William met Barrack and Michelle Obama at Buckingham Palace on Tuesday sold out online within hours after photos hit the Internet.

Demand for the Reiss dress, which is called Shola and retails for $340, was so great it caused the fashion brand's Web site to crash.

Due to unprecedented demand, Shola mania has crashed our website! We are endeavouring to bring the Reiss brand back to you ASAP, the company Tweeted.

On their first day in London, the Obama's took part in traditional ceremony including the palace welcome then the pilgrimage to the tomb of the Unknown Soldier in Westminster Abbey followed by a gift swap with the royal family.

See photos next

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