Prince Charles and wife Camilla made a surprise visit to a Jubilee street party on Saturday.
The royal couple opted to join the lunch outside the world-famous Fortnum & Mason store on Piccadilly alongside around 500 fellow picnickers.
Camilla, patron of the Big Jubilee Lunch initiative, and the Prince arrived at noon and sat down to enjoy a spread including sausage rolls on Union Jack paper plates.
"What a wonderful day, let's hope the weather holds off," Charles told one fellow dinner.
He added: "So glad you could be here."
Camilla also brought along a special Diamond Jubilee-themed sponge cake decorated with a large flag. She explained that although she had not made the cake, it had been her idea.
The Duchess added: "I am not sure you would want to eat anything I made anyway!"
Piccadilly, an ideal destination for those staying in cheap London hotels close to Marble Arch, was closed for the first time in 300 years in order for the street party to take place and many local businesses also played a key role in the event.
In a special message to the Commonwealth, the Queen thanked people for their support and praised the organisers of the many Jubilee events that took place in London and throughout the world.
The monarch said: "Prince Philip and I want to take this opportunity to offer our special thanks and appreciation to all those who have had a hand in organising these Jubilee celebrations.
"It has been a massive challenge and I am sure that everyone who has enjoyed these festive occasions realises how much work has been involved."