Nicky and Paris Hilton Keep Fire and Ice Streak Going in Coordinating Holiday Party Dresses and More Looks From the Nicky Hilton for Rebecca Vallance Holiday Collection Party

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A bevy of stars and A-list guests attended the launch of the Nicky Hilton for Rebecca Vallance holiday collection in Bel Air on Friday. Hosted by Kathy and Rick Hilton in partnership with Mytheresa, a leading luxury multibrand digital platform, the event coincided with Nicky Hilton’s 41st birthday. The collection, featuring 31 looks, launched on Oct. 1.

The cocktail hour transitioned into an informal dinner, featuring a surprise birthday cake for Nicky. “Rebecca Vallance and Nicky Hilton have created an exquisite collection of stylish and luxurious feminine pieces that truly resonate with the Mytheresa customer,” said Heather Kaminetsky, Mytheresa’s president of North America.

“We are always looking for ways to surprise and delight our community of luxury enthusiasts and this collection of refined sculptural shapes and unique fabrications is sure to do just that. We are thrilled to partner with them on the launch of such a special holiday capsule and to celebrate Nicky’s birthday.”

Ahead, see what guests like the Hilton sisters, Kris Jenner and more wore to the event.

Nicky Hilton

Nicky Hilton coordinated with her older sister, wearing a blue and silver lace sequin minidress. The dress, part of the Nicky Hilton x Rebecca Vallance joint collection, featured a scallop hemline, short sleeves and bow detailing down the bodice.

Paris Hilton

Paris Hilton wore a complementary look to her sister, wearing the same style dress but in red and silver. Paris paired it with silver pointed-toe heels and wore her voluminous blond hair in her signature soft waves.

Kris Jenner

Kris Jenner also chose a piece from the Nicky Hilton x Rebecca Vallance collection. The reality TV star wore the Celia blazer pleated minidress in black and silver, pairing it with black tights and pointed-toe black heels.

Kelly Osbourne

Kelly Osbourne opted for an off-the-shoulder silhouette, wearing the Gianna diamanté cocktail dress from the Nicky Hilton x Rebecca Vallance collection. The dress featured a fitted bodice with boning, a pencil skirt with a back slit and diamanté details at the neckline.

Shop the Nicky Hilton x Rebecca Vallance Collection