Balmain Designer Olivier Rousteing Celebrates His 30th Birthday with All His Fashion Muses

The Kardashian Jenners, Balmain model babes, plus more VIP guests turned out for the designer's celebration.

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It's been a big month for Olivier Rousteing. After showing his collection for H&M earlier this week, the Balmain creative director celebrated his 30th birthday among a fashionable crowd of friends in the Hollywood Hills. The star-studded guest list included the Kardashian-Jenners (of course), along with Rousteing's model muses, plus more chic celebrities. Click through to see all the VIP attendees who fêted the designer's birthday in style.

Rosie Huntington-Whiteley and Olivier Rousteing

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Kendall Jenner

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Alessandra Ambrosio and Olivier Rousteing

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Cara Delevingne, Abbey Lee Kershaw, Kendall Jenner, Olivier Rousteing, Rosie Huntington-Whiteley, Constance Jablonski, Angela Lindvall, and Kylie Jenner

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Tyga and Kylie Jenner

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Jaden and Willow Smith

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Jessica Biel, Olivier Rousteing and Cara Delevingne

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Justin Timberlake and Olivier Rousteing

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Mary J. Blige

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Rachel Zoe

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Chanel Iman

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Jaden Smith, Kourtney Kardashian, Kim Kardashian and Willow Smith

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Jourdan Dunn

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Angela Lindvall

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Willow Smith and Kylie Jenner

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Corey Gamble, Kris Jenner, Kourtney Kardashian, Mary J. Blige, Jada Pinkett Smith, Jaden Smith, Kim Kardashian and Willow Smith

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Jennifer Lopez

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Kim Kardashian, Olivier Rousteing and Kourtney Kardashian

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Daisy Clementine Smith, Lucky Blue Smith, Olivier Rousteing and Pyper American Smith

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Kris Jenner, Mary J. Blige and Jada Pinkett Smith

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Alessandra Ambrosio

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Kate Hudson and Olivier Rousteing

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Constance Jablonski, Abbey Lee Kershaw, Rosie Huntington-Whiteley, Cara Delevingne, Kendall Jenner and Jaime King

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Brendan Fallis and Hannah Bronfman

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Zoe Kravitz and Olivier Rousteing

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