Costa Hosts Post-Show Calvin Klein Fete

Photographers were flashing away at Standard Grill, where a celeb-heavy crowd joined Francisco Costa for a dinner to celebrate Calvin Klein’s spring collection.

“My flight is at 5 a.m., so I have an excuse to stay up all night,” said Thandie Newton. The Brit actress, in town for one night only, was soon joined by her old friend Jason Patric, Rose Byrne, Jared Leto, Molly Sims, Elettra Wiedemann and Dree Hemingway.

Kerry Washington, fresh off the premiere of her new film “Mother and Child” in Toronto, was excited to be back in New York for the upcoming Broadway production of David Mamet’s “Race.”

After guests including Rosetta Getty, Jamie Burke, Aerin Lauder and Rachel Zoe tucked into dinner, an after party took over the beer garden.

“Bye Bye Birdie” star John Stamos showed up with nightclub owner Scott Sartiano (Ashley Olsen’s ex). “I’ve barely had time to go out because we are working so hard,” said the actor, whose show opens Oct. 15.

Meanwhile, “True Blood” actors Ryan Kwanten and Sam Trammell caused excitement amongst the gaggles of girls — except for a blissful, eight-months-along Karolina Kurkova, that is, who was making the rounds with fiancé Archie Drury.