On Friday a ballot will open to give members of the public the chance to attend The Patron's Lunch. The event has been billed as the "biggest street party" the nation has ever seen and is being held to celebrate the Queen's 90th birthday, as well as celebrate her patronage of over 600 charities and organisations.
A total of 10,000 people will sit down for a picnic-style lunch on Sunday 12 June at tables positioned along the full length of the Mall. The Queen will naturally attend, as well as Prince Phillip and other members of the royal family.
However, only 2,000 tickets will be made available to the public.
The Patron's Lunch will celebrate the Queen's patronage of over 600 charities and organisations
For a chance to secure one, register at www.thepatronslunch.com/publicballot. The ballot opens on Friday 26 February at 10:30am and will close at 11.59pm on Thursday 31 March.
Applicants can apply for a maximum of two tickets, which can be paid for as a single or as a pair. Tickets are not allocated on a first-come, first-served basis.
Each ticket costs £150 and guests will be able to take their wicker hamper home, after enjoying their M&S sourced luncheon.
A total of 2,000 tickets will be available to apply for by ballot
As well as the picnic, guests will be treated to a fantastic carnival parade down The Mall and along Birdcage Walk, full details of which will soon be announced.
The not-for-profit event, which has been organised by the Queen's grandson Peter Phillips and his company SEL, will raise money for the newly created Patron's Fund, which supports the Queen's charities in the UK and Commonwealth.
As well as a picnic, guests will be treated to a carnival parade down The Mall
For those who can't get tickets to the street party, there will be other celebrations around London. The Patron's Lunch will be broadcast live across BBC platforms, and big screens will be set up in Green Park and St James's Park to watch the action.
Meanwhile, communities across the UK are being encouraged to host their own street parties and join in the birthday celebrations.
The Patron's Lunch will be the finale to a weekend of national celebrations, which will include the Service of Thanksgiving on Friday 10 June and Trooping the Colour on Saturday 11 June.