Prince Harry and Meghan Markle have a new celeb pal.

The royal couple joined Kevin Costner at a charity fundraiser he hosted in Santa Barbara, Calif., on Friday.

The “Yellowstone” star, 68, held the One805LIVE! event at a polo field on his luxurious estate.

One805 is an organization that was established in 2018 and provides financial aid and mental health support for first responders in Santa Barbara county.

The Sussexes — who live in Montecito, Calif. — presented Costner with an honorary award at the event.

In a video shared by the charity on their Instagram Story Friday, Markle, 42, clapped as Harry, 39, went over to the “Bodyguard” star to present the award and shake his hand.

The Duke and Duchess of Sussex appeared relaxed and chatty at the event, mingling backstage with Costner and law enforcement, according to eyewitnesses.

Harry and Markle weren’t the only big names at the soirée, though. Oprah Winfrey, who released a bombshell interview with the royals in March 2021, was also in attendance.

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In a video reposted on the charity’s Instagram Story, the former talk show host introduced firefighter Sam Dudley onstage alongside his service dog, Rhoda.

She called him an “extraordinary man” before noting that One805 has provided counseling services for over 700 first responders and “this year alone prevented 24 suicides.”

Maroon 5 was also present to provide entertainment for all of the guests. The band’s lead singer, Adam Levine, was heard singing their hit “This Love” in a clip from the gathering.

At one point, Costner, 68, took the stage to address the attendees and said, “Good afternoon, everyone.”

“Now, I get asked a lot by my friends who have no manners, ‘Kev, what’s this place cost? What’s it worth?’ And I can just simply tell you on a day like today it’s worth every penny,” he added.

The “Hidden Figures” star continued, “It’s a place that I’ve had a lot of good luck in my life and I’ve tried to not throw up a wall around it, so thank you for coming.”

Per One805’s website, Costner was previously set to host the shindig with his ex-wife Christine Baumgartner, but he took over the duties solo following their contentious split.

The warring couple — who had been duking it out in court for months — finally settled their divorce this week.

“Kevin and Christine Costner have come to an amicable and mutually agreed upon resolution of all issues pertaining to their divorce proceedings,” the exes shared in a joint statement to Page Six Tuesday.

Baumgartner, 49, filed for divorce from the Oscar winner in May after 18 years of marriage. They share three children together.

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