Kendall Jenner And Gigi Hadid Swap Hair Color, Turn Into Each Other

You know what they say: Friends who walk in all the major runway shows and undergo complete beauty transformations together, stay together. 

OK, that might only be the case for Kendall Jenner and Gigi Hadid , fashion's favorite it-girl-best-friend-power-duo. For their latest jaunt down the runway together, at Balmain in Paris Thursday, the pair appeared like never before:  wearing wigs in each other's signature hair color. 

They were just two of a slew of famous models who walked designer Olivier Rousteing's star-studded, swapped-hair runway. Hairstylist Sam McKnight told Vogue that Rosteing decided to change every Balmain model's shade to "create a surprise."  

Model Rosie Huntington-Whiteley ditched her usual blonde locks for a dark brown look, while brunette Alessandra Ambrosio looked lovely with a blonde 'do. 

Jenner even shared a downright trippy selfie with Hadid from after the show that could pass for the most accurate face swap of all time:

While the hair is temporary, this friendship looks to last a lifetime.