AP Photo/Joel Ryan
Singer Robbie Williams performs at the Queen's Jubilee Concert in front of Buckingham Palace, London, June 4, 2012. The concert is part of four days of celebrations to mark the 60-year reign of Britain's Queen Elizabeth II.
AP Photo/Joel Ryan
Grace Jones performs at the Queen's Jubilee Concert in front of Buckingham Palace, London, June 4, 2012. The concert is part of four days of celebrations to mark the 60-year reign of Britain's Queen Elizabeth II.
LEON NEAL
Chinese pianist Lang Lang salutes the crowd after his performance during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012.
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British composer Andrew Lloyd Webber plays the piano on stage during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012.
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British singer-songwriter Robbie Williams performs on stage during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012.
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British boy band JLS (from left, Aston Merrygold, Oritse Williams, Jonathan Benjamin "JB" Gill and Marvin Humes) performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012.
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Australian singer Kylie Minogue performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012.
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Spectators with Union Flags crowd the Mall waiting for the start of the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012.
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Spectators watch the concert on giant creens on the Mall outside Buckingham Palace in London on June 4, 2012, during the Queen's Jubilee concert.
AP Photo / MJ Kim, MPL Communications
In this photo released by MPL Communications, Sir Paul McCartney with Gary Barlow pose backstage at the Diamond Jubilee concert at Buckingham Palace in London on June 4, 2012.
Complete Coverage: The Queen's Jubilee
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A man wearing a fancy hat poses on the Mall in London, on June 4, 2012, in preparation for the Queen's Jubilee concert outside Buckingham Palace.
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A couple enjoy a special picnic in the grounds of Buckingham Palace during the Queen's Diamond Jubilee celebrations in London, on June 4, 2012. Complete Coverage: The Queen's Jubilee
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People stand outside Buckingham Palace ahead of the picnic and the Diamond Jubilee concert on June 4, 2012, in London.
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Two women with red wigs and Union Jack hats pose on the Mall in London, on June 4, 2012, in preparation for the Queen's Jubilee concert outside Buckingham Palace.
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People dance and cheer in Hyde Park during a live retransmission of the Diamond Jubilee concert at Buckingham Palace in London on June 4, 2012.
AP Photo/Joel Ryan
Sir Andrew Lloyd Webber and Gary Barlow onstage at the Queen's Jubilee Concert in front of Buckingham Palace, London, June 4, 2012. The concert is a part of four days of celebrations to mark the 60-year reign of Britain's Queen Elizabeth II.
AP Photo/Joel Ryan
Sir Elton John performs at the Queen's Jubilee Concert in front of Buckingham Palace, London, June 4, 2012. The concert is part of four days of celebrations to mark the 60-year reign of Britain's Queen Elizabeth II.
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British tenor singer Alfie Boe performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London, on June 4, 2012.
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British singer Tom Jones performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London, on June 4, 2012.
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British comedian Jimmy Kaa performs on stage during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012.
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British singer Shirley Bassey performs during the Queen's Diamond Jubilee Concert at Buckingham Palace in London on June 4, 2012.
(AP Photo/Joel Ryan
Sir Paul McCartney performs at the Queen's Jubilee Concert in front of Buckingham Palace, London, June 4, 2012. The concert is part of four days of celebrations to mark the 60-year reign of Britain's Queen Elizabeth II.
