Video & Photos: Queen Elizabeth, Brown & Obama, UK, 1 April 2009

U.S. President Barack Obama and First Lady Michelle Obama walk to 'Marine One' as they depart the White House on March 31, 2009 in Washington, DC. President Obama is on his first visit to Europe and will attend the G20 Summitt in London. (Photo by Mark Wilson/Getty Images North America)

Prime Minister Gordon Brown and his wife Sarah Brown (L) meet with U.S. President Barack Obama and his wife first lady Michelle Obama in Downing Street on April 1, 2009 in London, England. Prime Minister Brown is hosting a dinner for world leaders in Downing Street ahead of tomorrow's G20 Summit. Gordon Brown;Sarah Brown;Barack Obama;Michelle Obama (Photo by Peter Macdiarmid/Getty Images Europe)

(L-R) British Foreign Minister David Miliband, US Secretary of State, Hillary Rodham Clinton, Prime Minister Gordon Brown, US President Barack Obama, US Treasury Secretary Timothy Geithner and Chancellor Alistair Darling pose at 10 Downing St on April 1, 2009 in London, England. Presient Obama is having meeting with the members of the UK government before the 2009 G20 Summit on April 2 at London's ExCel Center (Photo by Christopher Furlong/Getty Images)

U.S. President Barack Obama (R) meets with the leader of the Conservative Party David Cameron (L) at the U.S. ambassador's official residence in Regent's Park on April 1, 2009 in London, England. U.S. President Barack 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 Paul Rogers/WPA Pool/Getty Images)

US President Barack Obama drinks water during a press conference with Britain's Prime Minister Gordon Brown and at the Foreign and Commonwealth Office on April 1, 2009 in London, England. US President Barack 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 Anthony Devlin/WPA Pool/Getty Images Europe)

 

Photos by GettyImages and Zimbio