Sharjah24 - AFP: Some 22,000 people and millions more at home were on Saturday expected at a musical celebration for Queen Elizabeth II's historic Platinum Jubilee.
The "Platinum Party at the Palace" is the highlight of the third day of public events to mark the 96-year-old monarch's record-breaking 70 years on the throne.
Motown legend Diana Ross is a star attraction at the event, to be held on a purpose-built 360-degree stage outside the head of state's central London residence, Buckingham Palace.
The concert also features artists including Italian opera star Andrea Bocelli and James Bond composer Hans Zimmer, in a marked shift in tone from the jubilee's first two days.
Celebrations began on Thursday with the pomp and pageantry of the Trooping the Colour military parade to mark the sovereign's official birthday.
Friday's focus was a traditional Church of England service of thanksgiving led by senior royals -- and returning Prince Harry and his wife Meghan -- in the hallowed surroundings of St Paul's Cathedral.
Saturday's concert, which will be broadcast live by the BBC on radio, television and online from 1900 GMT, is no less grand in scale.
But as an open-air event, all eyes will be on the skies and the fickle British weather to see if the forecast downpours hold off.