Astrid Stawiarz, Getty Images for TRESemme

The big get of the week -- Kim Kardashian -- has been gotten.

The butt-dacious one was front and center at Charlotte Ronson's show Saturday evening.

Accompanied by her wingman, publicist and sometime reality-show personality, Jonathan Cheban, K.K.'s presence caused security frenzy. They were so overzealous they kept one of Ronson's childhood friends, Dani Stahl, Nylon magazine fashion director and designer Lia Sophia, out of the house altogether.

Also in the house were Mena Suvari, seen earlier in the day at Jill Stuart and later at G-Star Raw, as well as Sophia Bush, Olivia Munn and Josh (brother to Good Charlotte's Joel and Benji) Madden.

And then there was the smallest VIP, Shoshanna Gruss' daughter, Sienna. The designer paused to plant a smooch on the 5-year-old, who was sitting on her dad's lap, at the end of the show.

"Did you have a good time?" Gruss asked her daughter, as she was mugging for pictures by the entrance of the Lincoln Center tents. "Yes!" she said with typical kid enthusiasm.

To see more of Charlotte Ronson show and interview, check out our partner video below.