Britain's Queen Elizabeth celebrated 60 years on the throne Tuesday with a fanfare-filled address to Parliament in Westminster Hall.
The 85-year-old queen addressed both the House of Lords and the Commons, an honor reserved only for monarchs and the most illustrious visitors.
"Since my accession, I have been a regular visitor to the Palace of Westminster and, at the last count, have had the pleasurable duty of treating with 12 prime ministers," said the queen, drawing laughter from an audience that included the latest three: Tony Blair, Gordon Brown and David Cameron.
She also said a constant in her life has been her husband, Prince Philip.
The queen made similar speeches in parliament to mark her Silver Jubilee in 1977 and her Golden Jubilee in 2002.
The main celebrations of her Diamond Jubilee weekend will be held June 2-5.
