Photos : The Queen of England hosts a reception for G20's

Argentina's President Cristina Fernandez de Kirchner arrives at a reception for world leaders attending the G20 summit at Buckingham Palace on April 1, 2009 in London, England. The delegates later attended a dinner at Downing Street cooked by celebrity chef Jamie Oliver. (Photo by Roland Hoskins - WPA Pool/Getty Images)

Britain's Prime Minister Gordon Brown and wife Sarah Brown arrive at a reception for world leaders attending the G20 summit at Buckingham Palace on April 1, 2009 in London, England. (Photo by Roland Hoskins - WPA Pool/Getty Images)

Indian Prime Minister Dr Monmohan Singh and wife Gursharan Kaur arrive at a reception for world leaders attending the G20 summit at Buckingham Palace on April 1, 2009 in London, England. (Photo by Roland Hoskins - WPA Pool/Getty Images)

Russian President Dmitry Medvedev (R) and his wife Svetlana Medvedeva at Buckingham Palace for a drinks reception hosted by Queen Elizabeth II, on April 1, 2009 in London, England. (Photo by Geoff Caddick/WPA Pool/Getty Images)

Canada's Prime Minister Stephen Harper and wife Laureen Harper arrive at a reception for world leaders attending the G20 summit at Buckingham Palace on April 1, 2009 in London, England. (Photo by Roland Hoskins - WPA Pool/Getty Images)

Indonesian President Dr H Susilo Bambang arrives at Buckingham Palace for a drinks reception hosted by Queen Elizabeth II, on April 1, 2009 in London, England. (Photo by Geoff Caddick/WPA Pool/Getty Images)

Korean President Lee Myung-bak arrives at Buckingham Palace for a drinks reception hosted by Queen Elizabeth II, on April 1, 2009 in London, England. (Photo by Geoff Caddick/WPA Pool/Getty Images)

Britain's Secretary of State for Foreign and Commonwealth Affairs David Miliband arrives at a reception for world leaders attending the G20 summit at Buckingham Palace on April 1, 2009 in London, England.  (Photo by Roland Hoskins - WPA Pool/Getty Images)

Dutch Prime Minister Jan Peter Balkenende arrives at Buckingham Palace for a drinks reception hosted by Queen Elizabeth II, on April 1, 2009 in London, England. (Photo by Geoff Caddick/WPA Pool/Getty Images)

Italian Prime Minister Silvio Berlusconi arrives at Buckingham Palace for a drinks reception hosted by Queen Elizabeth II, on April 1, 2009 in London, England. (Photo by Geoff Caddick/WPA Pool/Getty Images)

Turkish Prime Minister Recep Tayyip Erdogan arrives at Buckingham Palace for a drinks reception hosted by Queen Elizabeth II, on April 1, 2009 in London, England. (Photo by Geoff Caddick/WPA Pool/Getty Images)

Japanese Prime Minister Taro Aso arrives at Buckingham Palace for a drinks reception hosted by Queen Elizabeth II, on April 1, 2009 in London, England. (Photo by Geoff Caddick/WPA Pool/Getty Images)

US Treasury Secretary Timothy Geithner is greeted by Mike Stevens, Treasurer to the Queen as he arrives at Buckingham Palace for a drinks reception hosted by Queen Elizabeth II, on April 1, 2009 in London, England. US (Photo by Anthony Devlin/WPA Pool/Getty Images)

French President Nicolas Sarkozy arrives at Buckingham Palace for a drinks reception hosted by Queen Elizabeth II, on April 1, 2009 in London, England. (Photo by Geoff Caddick/WPA Pool/Getty Images)

Spanish Prime Minister Jose Luis Rodriguez Zapatero (C) is greeted by Deputy Master of the Royal Household Colonel Charles Richards (R) as he arrives at Buckingham Palace for a drinks reception hosted by Queen Elizabeth II, on April 1, 2009 in London, England.  (Photo by Geoff Caddick/WPA Pool/Getty Images)

G20 delegates and guests attend a dinner at Downing Street on April 1, 2009 in London, England. (Photo by WPA Pool/Getty Images Europe)

Queen Elizabeth II talks with US Secretary of State Hilary Clinton and French President Nicolas Sarkozy during a reception for world leaders attending the G20 summit at Buckingham Palace on April 1, 2009 in London, England.  (Photo by John Stillwell - WPA Pool/Getty Images)

The President of the United States Barack Obama (C back to camera) greets King Abdullah of Saudi Arabia (C) before the official G20 leaders photograph with Queen Elizabeth II at Buckingham Palace on April 1, 2009 in London, England. Obama is on his first trip to the UK as President and will be attending G20 world leaders' summit dedicated to tackling the global financial crisis.
(Photo by WPA Pool/Getty Images Europe)

US President Barack Obama meets politicians from Saudi Arabia during a reception for world leaders attending the G20 summit at Buckingham Palace on April 1, 2009 in London, England. The delegates later attended a dinner at Downing Street cooked by celebrity chef Jamie Oliver. (Photo by Kirsty Wigglesworth - WPA Pool/Getty Images)

Queen Elizabeth II (L) meets politicians from Saudi Arabia during a reception for world leaders attending the G20 summit at Buckingham Palace on April 1, 2009 in London, England. (Photo by Kirsty Wigglesworth - WPA Pool/Getty Images)

Queen Elizabeth II (C) sits with Britain's Prime Minister Gordon Brown, and at right the President of Brazil Luiz Innacio Lula da Silva. Second row, the Prime Minister of the Netherlands; Kgalema Motlanthe, the President of South Africa; US President, Barack Obama. At top from left, Thailand's Prime Minister, Abhisit Vejjajiva; Prime Minister of Japan, Taro Aso; Italy's Prime Minister, Silvio Berlusconi, top, right, during a reception for world leaders attending the G20 summit at Buckingham Palace on April 1, 2009 in London, England. (Photo by Kirsty Wigglesworth - WPA Pool/Getty Images

Spouses and guests of G20 delegates pose prior to a dinner at 10 Downing Street on April 1, 2009 in London, England.

Queen Elizabeth II poses with delegates of the G20 London summit for a group photograph in the Throne Room at Buckingham Palace on April 1, 2009 in London, England. Back row from left: Dominique Strauss-Kahn, managing director of the International Monetary Fund; Ban Ki-moon, Secretary-General of the United Nations; Pascal Lamy, director-general of the World Trade Organisation; Abhisit Vejjajiva, chair of Asean and Prime Minister of Thailand; Taro Aso, Prime Minister of Japan; Silvio Berlusconi, Prime Minister of Italy; Mirek Topolanek, President of the European Council;Professor Mario Draghi, chairman of the Financial Stability Forum; Robert Zoellick, President of the World Bank. Middle row from left: Kevin Rudd, Prime Minister of Australia; Stephen Harper, Prime Minister of Canada; Dr Angela Merkel, Chancellor of Germany; Jose Luis Rodriguez Zapatero, Prime Minister of Spain; Dr Jan Peter Balkenende, Prime Minister of the Netherlands; Kgalema Motlanthe, President of South Africa; Barack Obama, President of the United States of America; Recep Tayyip Erdogan, Prime Minister of Turkey; Dr Manmohan Singh, Prime Minister of India; Jose Manuel Barroso, President of the European Commission; Meles Zenawi, chair of Nepad and Prime Minister of Ethiopia. Front row from left: Lee Myung-bak, President of Korea; Nicolas Sarkozy, President of France; King Abdullah bin Abdul Aziz Al Saud GCB GCMG, of Saudi Arabia; Hu Jintao, President of China; Gordon Brown, Prime Minister of the United Kingdom; Queen Elizabeth II; Luiz Innacio Lula da Silva, President of Brazil; General TNI (Ret) Dr H Susilo Bambang Yudhoyono, President of Indonesia; Felipe Calderon Hinojosa, President of Mexico; Cristina Fernandez de Kirchner, President of Argentina; Dmitry A Medvedev, President of Russia. (Photo by WPA Pool/Getty Images Europe)