A STAR IS BORN: Joining front row regulars Rooney Mara, Diane Kruger and Yseult at the Givenchy show in Paris was a new face: Emma Thynn, a.k.a. the Marchioness of Bath.

The British aristocrat is a freshly minted Bravolebrity, coming off the premiere of the network’s latest reality show, “Ladies of London: The New Reign,” a revival of the show that originally aired between 2014 and 2016. 

“It came out last night,” said Thynn, dressed in a crisp white dress with a square neckline, oversized black jacket and Audrey Hepburn-style bug-eye sunglasses.

She’s a big fan of creative director Sarah Burton. “I love her. She invited me, and I think she knows how to make people feel beautiful,” she said.

On the TV show, Thynn joins a cast of British socialites and American expats that also includes Missé Bequiri, Lottie Kane, Myka Meier, Kimi Murdoch, Martha Sitwell, Margo Stilley and, in a series first, a man: Mark-Francis Vandelli.

“Honestly, you only live once. And I thought, why not? It sounded like a fun thing to be a part of,” Thynn said of the new adventure.

The series kicked off with a two-hour episode, and reactions were flowing thick and fast. 

“I’m learning a lot very quickly. The Bravoverse is huge, and the Bravo fans are very passionate, and I’m stepping into their world, so fingers crossed. It’s an exciting time,” said Thynn. 

Asked whether the London social scene was comparable to a modern-day “Bridgerton,” she hedged. 

“Watch it and see for yourself, and then let me know,” Thynn said with a laugh. “I think it’s gonna be entertaining, for sure.”