Kendall and Hailey Shine at Diors Pre-Oscars Bash

and were spotted enjoying a girls' night out as they .

The gal pals were attending the pre-Oscars bash thrown by Dior and W magazine at the longstanding Beverly Hills institution Mr. Chow.

They were the image of supermodel glamour as they arrived at the fashionable Chinese restaurant, which has been a showbiz hot spot since 1974. 

Jenner, 30, is merely three days from finding out if her sister 's boyfriend has .

But the tension of anticipation seemed far from her mind as she strutted towards the restaurant in a monochrome top with elegant floral trim.

Her black scarf, which appeared to be made of chiffon, was flung over the front of her neck in a flourish of retro chic elan reminiscent of the 1990s.

Letting her raven hair down in silken curtains, she sharpened her unmistakable features with makeup including a slick of crimson lipstick.

Meanwhile Mrs. Justin Bieber offered a glimpse of her enviably toned midriff in a sparkling midnight blue blazer-.

Her acid wash trousers were fashionably torn, lending a touch of the casual to the luxe evening out, and she rounded off the look with black stilettos and a clutch.

Jenner showed off her outfit in a brace of mirror selfies she took as she performed the final check on her look before stepping out for the evening. 

Among the other celebrities glimpsed swanning into Mr. Chow that evening was none other than Jenner and Bieber's fellow model Emily Ratajkowski.

Ratajkowski's enviably willowy frame was swathed in a tight blue cocktail dress that gleamed as the lights fell on it outside the restaurant.

Her frock featured swirling floral embroidery that complemented the dull rose pink shade of lipstick she wore for her latest night out in the 90210 zip code.

Accenting the look with a black purse and matching heels, the 34-year-old let her luxurious dark hair cascade freely over her shoulders in gentle waves.