Sydney Sweeney’s 26th Birthday Party Was Star-Studded and 1980s Prom-Themed

Sydney Sweeney at the Met Gala — (Image credit: Getty Images)

Though Sydney Sweeney is definitively a 1990s baby—she was born in 1997 and just turned 26 a few days ago—it was back to the 1980s for Sweeney’s prom-themed birthday party, which she let us have a glimpse of on Instagram this weekend.

The actress “teased the festivities on her Instagram Story on Sunday with an aesthetic filtered snap of mirror balls and pink curtains draped across the ceiling,” People writes. To show off what the party looked like, Sweeney reposted several of her friends’ own Instagram Stories, with the aforementioned mirror balls and pink curtains on display in one, and “a lit-up dance floor, balloon displays, and a white banner with pink text that read ‘Syd’s Prom’ against sparkly metallic fringe” in others.

There was a photo booth courtesy of Revolve and Polaroid on hand, and the backdrop for the prom photos was blue-and-pink starry steamers with two color-coordinated balloon arches. The décor nailed the 1980s prom theme, but so did the birthday girl herself: Sweeney “wore a bright pink minidress with puffy sleeves that looked like it came straight out of the ‘80s, as seen in photos she posed for with guests,” People writes. “She also captured the decade’s signature style with her voluminous blonde curls and accessories, including a small handbag and platform heels, both adorned with adorable bows.” (Seriously—she nailed it.)

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Camila Mendes wrote on her Instagram story that “80’s prom night was rad,” alongside two pink hearts. “Love youuuuu :)” Sweeney wrote in response to her friend. Nicola Peltz Beckham was also there, and shared a photo of Sweeney clapping while everyone around recorded her. “Happy birthday beauty! I love you so much!!” Beckham wrote alongside emojis including a bow, a sparkly pink heart, heart hands, and heart eyes and a crown. Barbie actress Ariana Greenblatt and Mendes recorded footage of Sweeney standing beside her multicolored three-layer cake while her guests serenaded her with “Happy Birthday.” “As the song ended, Sweeney blew out the candles and raised her arm up while she cheered and threw everybody a kiss,” People reports.

Alexandra Shipp called Sweeney the “birthday bae” on her Instagram, and Anitta posted a photo of the two of them that was captioned “My first prom thanks to the bday girl @sydney_sweeney U deserve the best!!!”

Rachel Burchfield is a writer, editor, and podcaster whose primary interests are fashion and beauty, society and culture, and, most especially, the British Royal Family and other royal families around the world. She serves as Marie Claire’s Senior Celebrity and Royals Editor and has also contributed to publications like Allure, Cosmopolitan, Elle, Glamour, Harper’s Bazaar, InStyle, People, Vanity Fair, Vogue, and W, among others. Before taking on her current role with Marie Claire, Rachel served as its Weekend Editor and later Royals Editor. She is the cohost of Podcast Royal, a show that was named a top five royal podcast by The New York Times. A voracious reader and lover of books, Rachel also hosts I’d Rather Be Reading, which spotlights the best current nonfiction books hitting the market and interviews the authors of them. Rachel frequently appears as a media commentator, and she or her work has appeared on outlets like NBC’s Today Show, ABC’s Good Morning America, CNN, and more.