Pharrel Williams, the international pop star, has put his name on an exclusive version of Adidas' Hu NMD sneaker for Chanel. The model in black features the words Pharrell and Chanel. Williams, a longtime Adidas ambassador, also became a Chanel model at the Chanel Métiers d'Art show last December and was the face of the advertising campaign for the fashion brand's first unisex handbag, Gabrielle. The sneaker is sold exclusively in a Chanel pop-up corner in Colette, the Parisian store. Chanel rarely collaborates with other brands, while Adidas has worked with designers and celebrities like Stella McCartney, Alexander Wang, Y-3 by Yohji Yamamoto and Kanye West.