Star Studded: Best Parties This Week

Best Parties - Olivier Rousteing and Lewis Hamilton - January 21, 2017 - SLIDE
Photo: Victor Boyko/Getty

What's picturesque, romantic, and chic all over? The City of Love, my friends.

That's where the most insider-y of fashion insiders spent their week for a) the spring 2017 menswear shows b) Paris Couture Fashion Week or c) both. Tilda Swinton lent her sleek, modelesque aesthetic to the camera at a celebration of Berluti Creative Director Haider Ackermann's latest collection for the boys, where the designer looked dapper in a sleek sports jacket and Swinton shone with her signature bold red lip.

The word party doesn't start contain a 'B,' but it may as well considering Balmain never fails to host a bash that defines fun. The fashion house's Olivier Rousteing celebrated his collection at El Pompon Magnifico, where he welcomed an exciting mix of notables which included photographer Ellen von Unwerth, model Grace Bol, race car driver Lewis Hamilton, and Sofia Richie. If the boys of Paris were in search of a golden ticket, all treasures lead to Balmain.

Of course, we can't forget the world of couture. Following Dior's magnificent runway show, Dior Beauty ambassador Bella Hadid grabbed her troops and spent the evening at Dior's masquerade ball, where she #nailedit in a sheer pastel blue number alongside Kendall Jenner, also in sheer and also sporting a fresh set of micro bangs.

The celebrity sightings weren't few at the Sundance Film Festival, where Lily Collins happily promoted To the Bone from one screening to the next.

RELATED: 9 Celebrity Hair Makeovers of 2017

Scroll down for the hottest parties of this week.

01 of 13

Sofia Richie

Sofia Richie 
Victor Boyko/Getty

at Balmain's spring 2017 menswear after-party.

02 of 13

Cindy Bruna

Cindy Bruna
Victor Boyko/Getty

at Balmain's spring 2017 menswear after-party.

03 of 13

Grace Bol

Grace Bol
Victor Boyko/Getty

at Balmain's spring 2017 menswear after-party.

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Ellen von Unwerth

Ellen von Unwerth
Victor Boyko/Getty

at Balmain's spring 2017 menswear after-party.

05 of 13

Zoey Deutch

Zoey Deutch
Michael Kovac/Getty

at Park City Live resents The Hub at the 2017 Sundance Film Festival.

06 of 13

A$AP Rocky and Bella Hadid

A$AP Rocky and Bella Hadid
Victor Boyko/Getty

at Dior's Bal Masque Party.

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Kendall Jenner and Bella Hadid

Kendall Jenner and Bella Hadid
Bertrand Rindoff Petroff/Getty

at Dior's Bal Masque Party.

08 of 13

Alexandre Vauthier and Bella Hadid

Alexandre Vauthier and Bella Hadid
Julien M. Hekimian/Getty

at Swarovski's Alexandre Vauthier cocktail and dinner party.

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Lily Collins

Lily Collins 
Randy Shropshire/Getty

at AT&T's The Lift at the 2017 Sundance Film Festival.

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Tilda Swinton and Haider Ackermann

Tilda Swinton and Haider Ackermann 
Bertrand Rindoff Petroff/Getty

at Berluti's spring 2016 after-party.

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Natalia Vodianova and Marisa Berenson

 Natalia Vodianova and Marisa Berenson 
Swan Gallet/WWD/REX/Shutterstock

at Berluti's spring 2017 after-party.

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Alfre Woodard and Elle Fanning

Alfre Woodard and Elle Fanning
Vivien Killilea/Getty
13 of 13

America Ferrera

America Ferrera 
Randy Shropshire/Getty

at AT&T's The Lift at the Sundance Film Festival.

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