Prince William, Kate Middleton celebrate Robert Irwin’s ‘Dancing With the Stars’ win with sweet message

Prince William and Kate Middleton celebrated Robert Irwin’s “Dancing With the Stars” win with a sweet message.

“Congratulations Robert and Witney!” the Prince and Princess of Wales, both 43, wrote under Irwin’s Wednesday Instagram post.

In the post, Irwin, 21, shared a video of his onstage celebration with his pro partner, Witney Carson, after the pair won the Len Goodman Mirrorball Trophy and were lifted in the air by some of their co-stars.

“Dreams do come true ❤️,” Irwin — who previously received a special message from Prince William earlier in the season — captioned the video.

Irwin and Carson were named as the Season 34 “DWTS” Len Goodman Mirrorball Trophy winners during Tuesday’s three-hour finale.

The win comes 10 years after the zookeeper’s sister, Bindi Irwin, also won the dance competition series with Derek Hough.

In his celebration, Robert honored his sibling, saying that winning the same accolade as his sister meant “everything to him.”

“To follow in those footsteps and to do the same has meant everything to me,” the Australian conservationist told People after the show’s finale. “This has absolutely changed my life.”

Robert added that his sister’s win was extra special at the time because it shined a light on their conservation work, charity and the Australia Zoo and Wildlife Warriors.

“It’s about making the world a better place. And when I watched her lift that Mirrorball, I saw her lifting that message,” he said.

Robert’s win served as a special victory after it was revealed ahead of the show that he had suffered a rib injury in rehearsals.

Alix Earle and Val Chmerkovskiy were the runner-ups, Jordan Chiles and Ezra Sosa placed third, Dylan Efron and Daniella Karagach came in fourth and Elaine Hendrix and Alan Bersten followed in fifth place.