Fabulous frocks and heavenly hats will be on display for Ladies' Day at Royal Ascot today.
It marks the third day of the world-famous annual meet, where some 300,000 spectators are expected over five days of racing at the Berkshire course.
Attracting some of the best racehorses, jockeys and trainers in the world, the event is known as much for its display of flamboyant and exotic hats, with the most extravagant creations set to make an appearance later.
The Queen, who failed to win with any of her three horses yesterday, will be hoping for better luck today with runners in the King George V and Britannia Stakes.
Weather forecasters have predicted glorious sunshine throughout the day, with temperatures set to reach as high as 22C.
The Queen is a passionate horse owner and breeder and has had 22 winners during her long association with Royal Ascot.
Her horse Estimate won the showpiece race of Ladies’ Day in 2013, the Gold Cup, when the monarch could not contain her delight as it romped home.
But the horse was controversially stripped of its second-place finish in the same race last year after testing positive for morphine.
Bookmakers traditionally take bets on the colour of the Queen's hat – with punters correctly predicting she would wear pink and blue in the last two days.
During Royal Ascot, racegoers must adhere to a strict dress code in the Royal Enclosure.
Women must wear a hat or a "headpiece'' which has a diameter of four inches or more.
Off-the-shoulder and halter neck dresses, dresses with a strap of less than one inch and fascinators are all banned.
Midriffs must be covered up and trouser suits should be full length and of matching material and colour.
Men must wear morning dress with a waistcoat and top hat.
According to organisers, last year’s racegoers enjoyed 51,000 bottles of champagne, 160,000 glasses of Pimms, 5,000 kilos of salmon and 2,900 lobsters.