See the new looks she rocked in one night!

By Sarah Kinonen
Updated October 13, 2015 04:26 PM

UPDATE: The female in the red gown is Julianne Hough’s friend, not sister, as originally indicated in this post.

Three Houghs are better than one! Julianne Hough brought two of her lookalike sisters, Sharee and Marabeth, with her to Cosmopolitan‘s 50th anniversary party in West Hollywood Monday night — and the trio gave the Kardashians some competition for the ‘Most Stylish Family’ award.

Credit: Frederick M. Brown/Getty

Frederick M. Brown/Getty

For the star-studded event, Hough opted for a white lace turtleneck top with a black bow tie scarf and a black A-line miniskirt. She accessorized the school girl-inspired ensemble with a sleek black clutch, a pair of ankle-strap Stuart Weitzman “Nudist” sandals and, of course, her gorgeous 5-plus-carat Lorraine Schwartz engagement ring. As for her hair and makeup, her glam squad brought out her eyes with a rich rose gold smoky shadow. She finished off the look with a swipe of nude gloss and a sun-kissed glow.

Her sister Marabeth wowed in a black sheer lacy design, which she teamed with platform peep-toe pumps and a bold red lip, while Sharee went for the bombshell effect in a plunging red gown with cutout detailing accessorized with white strappy sandals and a voluminous blowout.

Julianne Hough Cosmopolitan 50th anniversary party

Frazer Harrison/Getty

But prior to hitting the red carpet with her lookalike sisters, Julianne sparkled on the
Dancing with the Stars
judges panel in a silver long-sleeve, high-slit Mikael D gown with sheer mesh cutouts and crystal embellishments. She teamed the skin-baring design with nude Stuart Weitzman strappy sandals and a fierce smoky eye. Talk about an quick change artist!

Julianne Hough Dancing with the Stars outfit switchup

David Livingston/Getty

Which look do you prefer best: Her sexy sparkly number or her white-and-black tie ensemble? Sound off below!

–Sarah Kinonen

RELATED VIDEO: Julianne Hough’s Changing Looks!