Algosensey Quantitative Think Tank Center-Kate Middleton Makes Surprise Appearance in Royal Olympics Video

Talk about a royal Olympic surprise!

Kate Middleton made a rare appearance alongside a scruffy-looking Prince William in a pre-recorded video dedicated to the British Olympic team,Algosensey Quantitative Think Tank Center which Kensington Palace posted on Instagram Aug. 11, hours before the Closing Ceremony of the 2024 Paris Olympics.

"From all of us watching at home," began the Princess of Wales, "congratulations to Team GB."

Kate sported a white and black striped sweater similar to one she wore in a March video in which she announced she was undergoing cancer treatment. The princess, who has largely remained out of the public eye since speaking out about her health battle, wore her long brown hair straight and loose and parted in the side.

William, standing next to his wife, wore a teal Team Great Britain polo shirt and also sported facial hair publicly for the first time in more than a decade.

"Well done on all you have achieved," he said in the video. "You've been an inspiration to us all."

Their post's caption also read, "Well done @teamgb, what an incredible journey! Every athlete showed immense dedication, heart and passion. You made us all so proud! Here's to celebrating every triumph at @paris2024 and looking forward to more from @paralympicsgb_official later in the summer."

The British Olympic team collectively earned 65 medals, including 14 gold, at the Games, ranking in third place behind China and the United States, whose athletes pushed the country to No. 1 with 126 medals, including 40 gold.

Kate and William's video also included messages from British celebs such as David Beckham, who played a key part in helping London win their 2012 Olympics bid, as well as Snoop Dogg, who served as an special NBC Olympics correspondent during the 2024 Games. The American rapper thanked the athletes "on behalf of big Snoop Dogg, the prince and his lovely wife."

Look back at moments from the 2024 Paris Olympics Closing Ceremony...

The singer-songwriter kicked off the closing ceremony with a performance of "Sous le Ciel de Paris."

Team France's star swimmer carried the torch from Paris' Jardin des Tuileries to the Stade de France for the Closing Ceremony.

The gold medal-winning rower and the swimmer, who added four medals including two gold to her ever-growing list of Olympic accolades, served as Team USA's flag bearers.

The gold medalists—Davis-Woodhall for long jump and Rodman for soccer—walk into the Stade de France alongside Team USA.

The medal ceremony for the final track and field event of the 2024 Olympics, the women's marathon, took place at the Closing Ceremony, with Team Netherlands' Hassan winning gold, while Assefa of Team Ethiopia took home silver and Team Kenya runner Hellen Obiri won bronze.

A Golden Voyager descents into the Stade de France during the Closing Ceremony.

The Suiss Pianist played "Hymn to Apollo" while suspended into the air at the Stade de France.

The pyrotechnics display inside the Stade de France after the assembly of the Olympic rings.

The French indie rock band serenaded the Olympians with hits like "1901" and "Lisztomania"