Queen Elizabeth attended first day of the Royal Windsor Horse Show
Britain's Queen Elizabeth receives parliamentarians during a reception to mark the Queen's 90th birthday at Buckingham Palace in London, Britain May 10, 2016. PHOTO: REUTERS/PAUL HACKETT

Queen Elizabeth II was casually dressed in a skirt and blouse and a headscarf at the Royal Windsor Horse Show on Thursday. She attended the first day of the event after it was cancelled on Wednesday due to heavy rain and flooding of the grounds. The nonagenarian royal was all smiles as she won a free Tesco gift card.

The royal, who celebrated her 90th birthday on April 21, was presented with the voucher after her horse won at the show. She appeared to be very happy about the win and inspected the gift card. The queen was dressed in a black and white plaid skirt paired with a pale blue shirt.

Her skirt featured pleated detailing while the blouse was long sleeved. Elizabeth also wore a navy gilet (sleeveless jacket like a blouse or waistcoat) and covered her head with a floral patterned headscarf. She finished her look with her trusted pair of black wellington boots.

Prince Philip was dressed in a pale blue shirt, trousers and a navy fleece. He also wore a cream-colored cap. The queen is the patron of the Royal Windsor Horse Show and stepped into the grounds of Windsor Castle on Thursday morning for the horse show with her husband by her side. Elizabeth watched a class at the Copper Horse Ring.

The royal couple appeared to be in full form as Philip was pictured exercising his horses as he drove a carriage around the grounds. Besides, Elizabeth, who loves horses, rides regularly. Meanwhile, it was for the first time in 60 years that the horse show was cancelled due to heavy rain and flooding on Wednesday.

The horse show is celebrated every year to showcase the queen’s love of horses, and this year it will be held till May 15. Around 900 horses and 1,500 performers will participate in a huge parade to celebrate Elizabeth’s milestone 90th birthday. The queen will be the guest of honor on the final evening, which will be broadcast live on ITV on Sunday, hosted by Ant and Dec.