This week's biggest party came courtesy of Louis Vuitton—and man, was it big. To toast the brand's new collaboration with Jeff Koons, the French house took over the Louvre for an intimate dinner that included an A-List roster of guests, such as Michelle Williams, Cate Blanchett, Miranda Kerr, Jennifer Aniston and Justin Theroux, Jennifer Connelly, and more. Meanwhile, in New York, Charlize Theron feted her new film The Fate of the Furious with a pregnant Rosie Huntington-Whitely, and Ashley and Mary-Kate Olsen made a rare public night out for the Youth America Grand Prix's 2017 "Stars of Today Meet the Stars of Tomorrow Gala." For all of the party pictures that you missed, click through.

Jeff Koons attends the "LVxKOONS" exhibition at Musee du Louvre.

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Jeff Koons posed with one of his designs ahead of the Louis Vuitton dinner.

Chloe Sevigny poses at the Louvre.

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Also in attendance for the dinner was Chloë Sevigny, who arrived wearing a chunky knit sweater and big hoop earrings.

Justin Theroux and Jennifer Aniston attend the Series Mania Festival opening night in Paris, France.

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After attending the Louis Vuitton dinner themselves, Jennifer Aniston and Justin Theroux attended the opening night of the Series Mania Festival.

Caroline Issa and Prabal Gurung attend their to celebrate the arrival of Spring 2017 in London, England.

Dave Benett

In London, Caroline Issa hosted a dinner for Prabal Gurung to celebrate his Spring 2017 collection arriving at Selfridge's.

Amber Heard attends the 4th annual unite4:humanity Gala.

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Amber Heard made the case for the formal suit at the 4th annual unite4:humanity Gala in Los Angeles.

Chris Evans and McKenna Grace attend the New York premiere of Gifted.

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Chris Evans embraced his co-star McKenna Grace at the premiere of their new film Gifted.

Charlize Theron attends The Fate Of The Furious New York premiere.

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Charlize Theron opted for a dramatic look at the New York premiere of The Fate Of the Furious.

Rosie Huntington-Whiteley attends The Fate Of The Furious New York premiere.

Jim Spellman

Where a pregnant Rosie Huntington-Whitely also made an appearance to support Jason Statham.

Ashley Olsen and Mary-Kate Olsen attend Youth America Grand Prix's 2017 Stars of Today Meet the Stars of Tomorrow Gala.

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The Olsens coordinated in black and white for the ballet event, the 2017 Youth America Grand Prix's "Stars of Today Meet the Stars of Tomorrow Gala."

Patti LuPone, Hillary Clinton and Christine Ebersole pose after the opening night performance of War Paint on Broadway.

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And Hillary Clinton, here with Patti LuPone and Christine Ebersole, took in yet another Broadway play, this time for the opening night of War Paint.

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