Buckingham Palace Olympic reception

First lady Michelle Obama arrives for a reception at Buckingham Palace for heads of state and government attending the Olympics opening ceremony on July 27, 2012, in London.

First lady Michelle Obama and Louis Susman, U.S. ambassador to the U.K. arrive fora reception at Buckingham Palace for heads of state and government attending the Olympics opening ceremony on July 27, 2012, in London.

First lady Michelle Obama and US Ambassador Louis Susman, left, meets Catherine, Duchess of Cambridge, during a reception at Buckingham Palace for heads of state and government attending the Olympics opening ceremony on July 27, 2012, in London.

Queen Elizabeth II meets Brazil's President Dilma Rousseff duringa reception at Buckingham Palace for heads of state and government attending the Olympics opening ceremony on July 27, 2012, in London.London.

First lady Michelle Obama and U.S. Ambassador Louis Susman attend a reception at Buckingham Palace for heads of state and government attending the Olympics opening ceremony on July 27, 2012, in London.

Prime Minister David Cameron chats with Jamaica Prime Minister Portia Simpson Miller and St. Lucia Prime Minister Kenny Anthony at a reception at Buckingham Palace for heads of state and government attending the Olympics opening ceremony on July 27, 2012, in London.

Prime Minister David Cameron chats with prime minister of the Palestinian Authority Salam Fayyad, second on the right, and Tunisian President Mohamed Marzouki, on the right, at a reception at Buckingham Palace for heads of state and government attending the Olympics opening ceremony on July 27, 2012, in London.

Prime Minister David Cameron chats with Jamaica Prime Minister Portia Simpson Miller as St. Lucia Prime Minister Kenny Anthony looks on, at a reception at Buckingham Palace for heads of state and government attending the Olympics opening ceremony on July 27, 2012, in London.

Catherine, Duchess of Cambridge, poses with President Elbegdorj Tsakhia of Mongolia, left, during a reception at Buckingham Palace for heads of state and government attending the Olympics opening ceremony on July 27, 2012, in London.

First lady Michelle Obama and U.S. Ambassador Louis Susman, left, meet Queen Elizabeth II during a reception at Buckingham Palace for heads of state and government attending the Olympics opening ceremony on July 27, 2012, in London.

Queen Elizabeth II speaks to President Elbegdorj Tsakhia of Mongolia, third on the left, and Erdene Elbegdorj, second on the left, during a reception at Buckingham Palace for heads of state and government attending the Olympics opening ceremony on July 27, 2012, in London.

Prince Harry meets with the President Ali Bongo Ondimba of Gabon and his wife, Sylvia, during a reception at Buckingham Palace for heads of state and government attending the Olympics opening ceremony on July 27, 2012, in London.

Queen Elizabeth II meets President Eveline Widmer-Schlumpf of Switzerland, left, during a reception at Buckingham Palace for heads of state and government attending the Olympics opening ceremony on July 27, 2012, in London.

First lady Michelle Obama speaks to Prince Albert II of Monaco during a reception at Buckingham Palace for heads of state and government attending the Olympics opening ceremony on July 27, 2012, in London.

Princess Beatrice, right, speaks to Prime Minister Omurbek Babanov of Kyrgyzstan and Rita Birbaeva during a reception at Buckingham Palace for heads of state and government attending the Olympics opening ceremony on July 27, 2012, in London.