Inside Kate Spade's Bloom Bloom Spring 2018 Event

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Two nor’easter storms may have left their snowy mark on the East Coast this week, but technically, spring is officially in full swing.

At least that was the case on Tuesday in New York, where Kate Bosworth, Victoria Justice, and Kata Mara joined Kate Spade for the brand's Bloom Bloom event at Rockefeller Center to celebrate the spring 2018 collection. It may have been cold outside, but the trio (above) each turned to floral daytime dresses you'll likely see people wearing in the months to come.

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Later in the week, Hollywood's power stylists were celebrated by The Hollywood Reporter and Jimmy Choo in L.A. To raise a glass to the women and men who make them look good, Dakota and Elle Fanning joined other celebrities like Gwyneth Paltrow, Mary J. Blige, and Yara Shahidi. At the Endometriosis Foundation of America's ninth annual Blossom Ball, Halsey hit the red carpet in one of the best naked dresses of 2018.

Scroll down to see the best parties of the week.

—with reporting from Brandi Fowler

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Dakota and Elle Fanning with Gwyneth Paltrow

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at The Hollywood Reporter and Jimmy Choo's Most Powerful Stylists in Hollywood celebration.

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Mary J. Blige and Yara Shahidi

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at The Hollywood Reporter and Jimmy Choo's Most Powerful Stylists in Hollywood celebration.

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Andra Day

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at the Love Rocks NYC! benefit for God's Love We Deliver.

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Halsey

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at the Endometriosis Foundation of America's ninth annual Blossom Ball.

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Selma Blair and Jaime King

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at AKID Brand's third annual egg hunt.

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Wes Gordon and Paul Arnhold

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at The Frick's Young Fellows Ball 2018.

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Alli Webb

Courtesy of Drybar

Webb, Drybar's co-founder, paid tribute to Drew Barrymore's wife-turned-zombie character on Santa Clarita Diet on Monday in Beverly Hills, where guests arrived for a party celebrating season two of the Netflix show and the hair styling bar. The signature "Fleshy Fizz cocktails" at the event included two funny and special ingredients: a marzipan finger and a toy syringe. Guests also got their hair whipped into a themed style called the “Sheila Mai Tai.” “In the same spirit of Drybar, which is a fun, light brand, and this show on Netflix, it’s all just very silly and fun,” Webb told InStyle. “With everything so serious going on in the world, I feel like we should just have fun and not take anything too seriously tonight.”

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Star-Studded: The Best Parties This Week

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Dakota and Elle Fanning with Gwyneth Paltrow