Gigi and Bella Hadid, Naomi Campbell and Hayley Bieber at a cocktail party at Paris Fashion Week. Paris Fashion Week is not only famous for its exciting and engaging runways,

Gigi and Bella Hadid, Naomi Campbell and Hayley Bieber at a cocktail party at Paris Fashion Week. Paris Fashion Week is not only known for its spectacular runways and engaging runways, but also for the raucous parties attended by celebrity guests. A large group of supermodels and famous fashionistas gathered at the cocktail party yesterday called "American In Paris": Naomi Campbell and Alexa Chung came to the event almost from the boat to the prom – right on the Valentino runway. They were also joined by Bella and Gigi Hadid, Hayley Bieber wearing a huge "men's" Matthew Adams Dolan shirt that replaced her skirt and deliberately buttoned the wrong button, while Dautzen Croce wore striped leggings.