Kendall Jenner, Gigi Hadid Swap Hair Color For Balmain Fashion Show [PHOTOS]

Kendall Jenner and Gigi Hadid are two of the biggest names in the fashion industry, but the dynamic duo were nearly unrecognizable at the Balmain show for Paris Fashion Week.

On Thursday, Jenner, 20, and Hadid, 20, walked the runway in the designer brand sporting brand new styles. The two pretty much swapped hair colors as Jenner modeled Olivier Rousteing's new line as a blonde and Hadid as a brunette. While the looks caused most people to do a double take, the models obviously looked gorgeous, as always.

"Olivier wanted to create a surprise," said Sam McKnight, the hairstylist responsible for the swap. "Rosie Huntington-Whiteley's a brunette, Alessandra [Ambrosio]'s a blonde. It's that Balmain cool girl...with a twist."

"A blonde @KendallJenner and a brunette @GiGiHadid backstage," the official Balmain account tweeted, alongside a stunning photo of the BFFs. The two are rocking matching grayish-blue ensembles, but Jenner's outfit stands out more than her hair as the top is sheer, exposing her nipples completely.

This isn't the first time Jenner has rocked a revealing outfit in the name of fashion, either, as the young reality star has sported several sheer shirts on the runway in the past. In 2014, she made headlines when she walked the Marc Jacobs runway in a see-through shirt and then the following year, at the Diane Von Furstenberg Spring 2016 NYFW show, she did it again in a white top that exposed her nipple ring for everyone to see.

Her mom, Kris Jenner, could care less that her daughter's breasts are out there for everyone to see as she posted a stunning photo of Jenner in the ice-blue get up to her Instagram. "Kendall opening for @balmain!!!! #blondebeauty #proudmama," she wrote. Jenner posted a similar photo, sharing her excitement over being able to open and close out the show. 

Jenner and Hadid have been two of Rousteing's go-to models for some time now. Last October, the designer brought them on to front the latest Balmain collection and collaboration with H&M. As a high-fashion and expensive line, he knew that bringing it to an affordable store, and having these two young stars as the face of the brand, would allow  the brand to become even more popular.

"I think the concept for H&M x Balmain is putting the couture in the stores," he said at the time. "It's a really rich and strong collection that is infused with the Balmain DNA. It's richness and French, and it's inspired by pop culture and the glamour that Balmain is known for...while keeping the quality of course!"