Singer Robbie Williams performs near the Band of the Welsh Guards during the Diamond Jubilee concert in front of Buckingham Palace in London June 4, 2012. Robbie Williams kicked off a concert outside Queen Elizabeth's sumptuous London residence on Monday before huge crowds gathered to celebrate the monarch's 60 years on the throne.[Photo/Agencies]

Singer Robbie Williams performs during the Diamond Jubilee concert in front of Buckingham Palace in London June 4, 2012.[Photo/Agencies]