Julianne Hough looked nothing short of stunning when she stepped out at the 2015 Emmys at the Nokia Theater in LA on September 20, where she donned a Marchesa frock straight from the runway at the Spring 2016 show during New York Fashion Week on September 16.

The 27-year-old was right in the front row, watching as the gorgeous gowns came down the catwalk at the St. Regis Hotel — and she was definitely taking notes, because she rocked the opening look just days later at the Emmys.

The Dancing With The Stars judge, now 27, showed off her fit dancer's figure in the barely-there black gown with skimpy bodice and sheer flowing tulle skirt that gave a glimpse of her lace underwear.

The edgy, see-through dress featured a strappy, criss-crossing bodice and with lace details on the back, and a sheer, floor-length black skirt with a dramatic train.

Julianne really stepped out of her comfort zone, it was an unexpected risk that totally paid off! the dress was sheer, but it was sexy in an ethereal way that was totally tasteful, too.

Julianne wore her blonde hair in an updo with a delicate matching, three-band black headpiece with a glittering gold accent.

She played up her bright blue eyes with dark eyeliner and mascara, and wore light pink lipstick.

Julianne wearing her hair back, she kept the focus on the intricate detailing of the dress. Her best accessory proved to be her sparkling engagement ring.

She announced her engagement to NHL player Brooks Laich last month.

The Rock of Ages actress added a glittery black clutch for some extra glamour.

The newly-engaged Hough was accompanied on the red carpet by her older brother Derek Hough who looked handsome in his black tuxedo.

The showbiz siblings also shared a photo on Instagram on the way to the Nokia Theater.

Julianne captioned the picture "I love my ever consistent Emmy date! @derekhough love you" and added a sweet heart emoticon.