Kim Kardashian rocks a tiny black T-shirt as she and sister Khloe mingle with BJ Novak at ChainFEST LA

Kim Kardashian wore a shrunken black T-shirt and black leather moto pants as she arrived at ChainFEST LA on Saturday.

The 43-year-old fashionista — who just celebrated five years of her SKIMS brand —was joined by 40-year-old sister Khloe Kardashian , who wore high-rise light wash jeans and a nude bodysuit.

The siblings mingled with BJ Novak , who founded Chain, at his celebrity-studded event in downtown Los Angeles .

Also at the food fair was Novak's ex-girlfriend and now-close friend, Mindy Kaling .

Chrissy Teigen , John Mayer, and Andy Cohen were among the other famous faces who showed up to the buzzy festival.

For the weekend occasion Kim punctuated her casual and sleek look with a pair of pointy-toe black heels.

Her long, dark, silky tresses were styled in a different look for the mogul — a center part with two braids on either side.

She teased a sliver of her taut tummy in her outfit, which she teamed with a full face of precisely applied matte makeup.

The beauty — who usually maintains a short, nude manicure — opted for long French tips.

For his part, 45-year-old Novak wore a dark gray Henley shirt and black trousers.

He finished the look with a pair of white Air Force 1s with red, black, and gold accents and the screenwriter-turned-entrepreneur was clean-shaven.

The former Office star thought up the idea of Chain in 2018 and started hosting pop-ups in March 2021.

It offers foodies a gourmet spin on fast food chains like Taco Bell White Castle was built under the culinary direction of Tim Hollingsworth, a Michelin-starred chef.

Mindy flashed her megawatt smile on the red carpet as she arrived in a black vest and matching trousers.

She wore a gold necklace and makeup that included berry-colored blush and a bold red lip.

Her dark hair was parted on the side and styled in subtle waves that fell over her chest.

General sale for the festival began on Friday, August 23 with tickets starting at $99.99 and capping at $1,299.99 for a chef's table experience.

Chain landed at a permanent location in the Virgil Village section of East Hollywood in Los Angeles this past January.

It boasts a 7,500 sq ft indoor/outdoor space that offers patrons an arcade, old-school photo booth, and other food chain-themed attractions.

Tier 1 tickets for ChainFEST were sold out before September, according to a joint August 20th Instagram post with BJ and the official Chain account.

Posting to nearly 60,000 followers, the caption read, 'UPDATE: Tier 1 tix are SOLD OUT. You can still get tier 2 tix chainFEST.com.'

It went on to tease, 'The world's first gourmet chain food festival returns to LA! New, exclusive menu items from your favorite chains – all crafted by Chain's Michelin-starred chef – available for one day only.

'13+ unique gourmet bites from Chain partners are **included in your ticket** featuring exclusive ChainFEST gourmet offerings & collab dishes created by Michelin-starred chefs.'