A racegoer attends the first day off Royal Ascot 2017 at Ascot Racecourse on June 20, 2017 in Ascot, England.

Layla Romic attends Royal Ascot 2017 at Ascot Racecourse on June 20, 2017 in Ascot, England.

Wilnelia Merced attends Royal Ascot 2017 at Ascot Racecourse on June 20, 2017 in Ascot, England.

Catherine, Duchess of Cambridge, Mike Tindall, Zara Phillips and Prince William, Duke of Cambridge attend Royal Ascot 2017 at Ascot Racecourse on June 20, 2017 in Ascot, England.

Catherine, Duchess of Cambridge and Carole Middleton attend Royal Ascot 2017 at Ascot Racecourse on June 20, 2017 in Ascot, England.

Catherine, Duchess of Cambridge and Carole Middleton attend Royal Ascot 2017 at Ascot Racecourse on June 20, 2017 in Ascot, England.

Prince Charles, Prince of Wales and Camilla, Duchess of Cornwall attend Royal Ascot 2017 at Ascot Racecourse on June 20, 2017 in Ascot, England.

Catherine, Duchess of Cambridge and Princess Beatrice of York attend Royal Ascot 2017 at Ascot Racecourse on June 20, 2017 in Ascot, England.

Queen Elizbeth II attends Royal Ascot 2017 at Ascot Racecourse on June 20, 2017 in Ascot, England.