Inside the Grand Palais in Paris, celebrities and fashion A-listers gathered to witness Chanel's Fall/Winter '17 haute couture collection deconstructed in the architectural-like setup. Seated front row was Chanel's ambassadors Cara Delevingne, Pharrell Williams and Kristen Stewart — who recently fronted the brand's new beauty campaign — alongside some of the biggest fashion names including Anna Wintour, Mario Testino and Lily Collins. Also in attendance was Julianne Moore, Sofia Coppola, Claudia Schiffer and Katy Perry — who just released her new music video with Calvin Harris, Big Sean and Pharrell Williams

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Paris Haute Couture Fashion Week Fall/Winter '17: Chanel front row

Paris Haute Couture Fashion Week Fall/Winter '17: Chanel front row

Paris Haute Couture Fashion Week Fall/Winter '17: Chanel front row

Paris Haute Couture Fashion Week Fall/Winter '17: Chanel front row

Paris Haute Couture Fashion Week Fall/Winter '17: Chanel front row

Paris Haute Couture Fashion Week Fall/Winter '17: Chanel front row

Paris Haute Couture Fashion Week Fall/Winter '17: Chanel front row

Paris Haute Couture Fashion Week Fall/Winter '17: Chanel front row

Paris Haute Couture Fashion Week Fall/Winter '17: Chanel front row

Paris Haute Couture Fashion Week Fall/Winter '17: Chanel front row

Paris Haute Couture Fashion Week Fall/Winter '17: Chanel front row

Paris Haute Couture Fashion Week Fall/Winter '17: Chanel front row

Paris Haute Couture Fashion Week Fall/Winter '17: Chanel front row

Also, discover who was sitting front row at Dior's Fall/Winter '17 haute couture collection show