Tickets are going on sale today for a major celebration marking the Queen's 90th birthday.

Organisers expect the 25,000 places to sell out quickly when they come up for grabs at 9am.

The Queen's 90th Birthday Celebration will take place from May 12-15 2016, in Home Park, Windsor Castle.

The theatrical spectacular will feature 900 horses and 1,500 participants including musicians, dancers and choirs, as well as famous actors and artists.

Members of the royal family will attend the show each night, and the Queen will go to the last performance on the evening of Sunday May 15, which will be broadcast live on ITV.

Tickets cost from £55 to £165 for a seat on Thursday May 12, Friday 13 or Saturday 14, and £75 to £195 on Sunday May 15. The most expensive seats are situated next to the Royal Enclosure and include access to a hospitality suite.

Organisers also announced that a free ballot for tickets to a special pre-performance party on the final night on The Long Walk which leads up to Windsor Castle would take place early next year.

Members of the public who are unable to buy a ticket to one of the four evening shows can apply for one of 5,000 free tickets, which will allow them to see celebrities arriving on the red carpet and to watch the final performance on giant screens with the Castle in the backdrop.

Details of how to apply will be announced in the New Year.

The Queen turns 90 on April 21. National commemorations will centre on her official birthday weekend in June with a mass street party in The Mall, a service of thanksgiving at St Paul's Cathedral and the traditional Trooping the Colour ceremony.

The celebration at Windsor is a not-for-profit event and aims to raise a surplus to donate to charities.

Singer Katherine Jenkins will be among those performing at the event, which will also feature The Oman Royal Cavalry, Chilean Huasos, New Zealand Army Band, Royal Canadian Mounted Police, Azerbaijan Cossack Riders, State Carriages from The Royal Mews, South Australian Police Band, The King's Troop Royal Horse Artillery, The Fijian Army Dancers and Band, 100 Military and Commonwealth Pipers and The Household Cavalry Mounted Regiment.

Simon Brooks-Ward, producer and director, said: "We've been working hard to make this a most unique birthday celebration.

"We're especially delighted with our plans to offer an extra 5,000 people the chance to be part of the celebrations through our balloted system for tickets on The Long Walk. This will take place in the New Year."

:: Tickets to the show can be purchased on www.hmq90.co.uk or via the box office on 0844 581 0755.