The Queen's 90th birthday celebrations start tonight in the grounds of Windsor Castle in a purpose-built arena used by the Royal Windsor Horse Show during the day. It comes after events were rained off yesterday. Musicians, actors, dancers and the military will perform for 25,000 spectators over four nights with The Queen attending on Sunday.
Crowds have lined the streets of Oxford today - despite the rain - hoping to catch a glimpse of Prince William. The Duke of Cambridge was in the city to see three major investment projects at the University.
He began his day at the Weston Library where he spent a lot of time outside chatting to local schoolchildren about their favourite books. Kate Bunkall reports.
A preview performance of the Royal Windsor Horse Show has been cancelled. The event is part of the celebrations planned by the organisers of Her Majesty the Queen's 90th Birthday Celebrations in Windsor.
The organisers have said that the show in front of a live audience can not take place because of heavy rain. There will be no impact on performances for the rest of the week, but the organisers said that unfortunately they can not offer replacement tickets to anyone who was planning to attend tonight's show because all the other performances are sold out.
Nick Brooks-Ward, Director of Operations for the Royal Windsor Horse Show explains the situation below.
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Prince Edward is in Hampshire and on the Isle of Wight today.
He'll be travelling on the latest hovercraft from Ryde to Portsmouth then meeting young people on the Duke of Edinburgh scheme.
He will also open a new building at Peter Symonds College in Winchester.
Birthday greetings for the Queen have been coming in from all over the globe.
This latest one is out of this world, as astronaut Tim Peake tweets.
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We were there to capture the excitement as thousands of well-wishers lined Windsor's streets for the Queen's 90th birthday.