(NEW YORK) It's been over a month since the last Calvin Klein Collection party, so clearly, another celebration is in store. On August 20, Francisco Costa and a bevvy of beauties from Alexa Chung to Elettra Wiedemann are hosting a chic cocktail at Saks to celebrate the opening of Calvin Klein Collection's women's shop in the Fifth Avenue flagship. The new shop, which is located in the Designer Sportswear department on the 2nd floor, covers approximately 900 square feet, and is located in Designer Sportswear on the 2nd floor. The all-white area, which was conceived by Calvin Klein Inc.'s in-house retail design team and Costa, will feature women's runway looks hanging from the ceiling in an installation format. To celebrate the event, the women's Calvin Klein Collection will also be prominently featured in Saks' Fifth Avenue windows. As for potential cameos? Well, we hear Costa is intrigued by Christine Staub...