British singer-songwriter Annie Lennox p

British singer-songwriter Annie Lennox performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London, on June 4, 2012. The star-studded musical extravaganza comes on the third of four days of celebrations to celebrate Queen Elizabeth II's 60 years on the throne. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

British singer Tom Jones performs during

British singer Tom Jones performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London, on June 4, 2012. The star-studded musical extravaganza comes on the third of four days of celebrations to celebrate Queen Elizabeth II's 60 years on the throne. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

British singer Tom Jones performs during

British singer Tom Jones performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London, on June 4, 2012. The star-studded musical extravaganza comes on the third of four days of celebrations to celebrate Queen Elizabeth II's 60 years on the throne. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

British singer-songwriter Annie Lennox p

British singer-songwriter Annie Lennox performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012. The star-studded musical extravaganza comes on the third of four days of celebrations to celebrate Queen Elizabeth II's 60 years on the throne. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

British singer Tom Jones performs during

British singer Tom Jones performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012. The star-studded musical extravaganza comes on the third of four days of celebrations to celebrate Queen Elizabeth II's 60 years on the throne. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

British singer Tom Jones performs during

British singer Tom Jones performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012. The star-studded musical extravaganza comes on the third of four days of celebrations to celebrate Queen Elizabeth II's 60 years on the throne. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

Prince Charles kisses the hand of Britai

LEON NEAL/AFP/GettyImages

Prince Charles kisses the hand of Britain's Queen Elizabeth II on stage as British singers Paul McCartney (3rdR) and Elton John (R) and other performers look on after the Jubilee concert at Buckingham Palace. in London, on June 4, 20112. A chain of more than 4,200 beacons began to flare across the globe Monday to mark Queen Elizabeth II's diamond jubilee, with the last to be lit by the monarch at a star-studded concert at Buckingham Palace. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

Britain's Queen Elizabeth II waves on st

Britain's Queen Elizabeth II waves on stage with Camilla, Duchess of Cornwall (3rdR) as British singer Paul McCartney (R) and other performers look on after the Jubilee concert at Buckingham Palace. in London, on June 4, 20112. A chain of more than 4,200 beacons began to flare across the globe Monday to mark Queen Elizabeth II's diamond jubilee, with the last to be lit by the monarch at a star-studded concert at Buckingham Palace. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

Britain's Queen Elizabeth II and Prince

Britain's Queen Elizabeth II and Prince Charles, Prince of Wales are seen on a screen during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on Juin 4, 2012. Britain's Queen Elizabeth II made a regal appearance at a star-studded diamond jubilee concert Monday but without her husband Prince Philip at her side after he was hospitalised hours earlier. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

British singer Annie Lennox performs on

British singer Annie Lennox performs on stage during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on Juin 4, 2012. Britain's Queen Elizabeth II made a regal appearance at a star-studded diamond jubilee concert Monday but without her husband Prince Philip at her side after he was hospitalised hours earlier. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

British singer Sir Paul McCartney perfor

British singer Sir Paul McCartney performs on stage during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on Juin 4, 2012. Britain's Queen Elizabeth II made a regal appearance at a star-studded diamond jubilee concert Monday but without her husband Prince Philip at her side after he was hospitalised hours earlier. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

US singer-songwriter Stevie Wonder perfo

US singer-songwriter Stevie Wonder performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012. The star-studded musical extravaganza comes on the third of four days of celebrations to celebrate Queen Elizabeth II's 60 years on the throne. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

US singer-songwriter Stevie Wonder (R) a

US singer-songwriter Stevie Wonder (R) and US singer-songwriter will.i.am (L) perform during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012. The star-studded musical extravaganza comes on the third of four days of celebrations to celebrate Queen Elizabeth II's 60 years on the throne. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

US singer-songwriter Stevie Wonder perfo

US singer-songwriter Stevie Wonder performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012. The star-studded musical extravaganza comes on the third of four days of celebrations to celebrate Queen Elizabeth II's 60 years on the throne. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

British singer-songwriter Elton John per

British singer-songwriter Elton John performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012. The star-studded musical extravaganza comes on the third of four days of celebrations to celebrate Queen Elizabeth II's 60 years on the throne. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

British singer-songwriter Elton John per

British singer-songwriter Elton John performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012. The star-studded musical extravaganza comes on the third of four days of celebrations to celebrate Queen Elizabeth II's 60 years on the throne. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

British singer-songwriter Elton John per

British singer-songwriter Elton John performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012. The star-studded musical extravaganza comes on the third of four days of celebrations to celebrate Queen Elizabeth II's 60 years on the throne. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

Fireworks light up the stage at the end

Fireworks light up the stage at the end of the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012. The star-studded musical extravaganza comes on the third of four days of celebrations to celebrate Queen Elizabeth II's 60 years on the throne. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

Britain's Queen Elizabeth II stands on s

Britain's Queen Elizabeth II stands on stage at the end of the Queen's Diamond Jubilee Concert at Buckingham Palace in London on Juine 4, 2012. The star-studded musical extravaganza comes on the third of four days of celebrations to celebrate Queen Elizabeth II's 60 years on the throne. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

British singer Sir Paul McCartney perfor

British singer Sir Paul McCartney performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on Juine 4, 2012. The star-studded musical extravaganza comes on the third of four days of celebrations to celebrate Queen Elizabeth II's 60 years on the throne. AFP PHOTO / LEON NEAL (Photo credit should read LEON NEAL/AFP/GettyImages)

The band Madness perform on the rooftop

The band Madness perform on the rooftop of Buckingham Palace during The Diamond Jubilee Concert in London, on June 4, 20112. A chain of more than 4,200 beacons began to flare across the globe Monday to mark Queen Elizabeth II's diamond jubilee, with the last to be lit by the monarch at a star-studded concert at Buckingham Palace. AFP PHOTO / DAVID BEBBER /POOL (Photo credit should read DAVID BEBBER/AFP/GettyImages)