FILE - Britain's Queen Elizabeth II arrives at television studios, in Belfast, Northern Ireland, in this Oct. 21, 2010 file photo. Britain's Queen Elizabeth II is launching an official Facebook page, offering fans daily updates on her engagements, the royal household said Sunday Nov. 7, 2010. (AP Photo/Peter Morrison, File)
June 2, 2012 3:27:37 AM PDT
LONDON (AP) - June 2, 2012 --
Queen Elizabeth II is off to the races Saturday, at the start of a four-day celebration of her 60 years on the throne.