Sydney Sweeney Celebrates Birthday with Space-Themed Nostalgia

Over the weekend, Sydney Sweeney hosted a space-inspired birthday party that took guests back to the early 2000s fashion era. Among the highlights was her choice of a striking silver mini dress, reminiscent of Britney Spears’ style during the “Circus” album period nearly two decades ago.

The dress, part of The Blonds’ Spring/Summer 2009 collection, showcases bold glam elements: corsets, glitter, spikes, and elaborate embellishments, all with a theatrical flair. Sweeney’s pose mirrored Britney’s iconic imagery, sitting on one hip in a similar stance, proudly displaying her look.

Sydney Sweeney in metallic mesh dress — Sydney Sweeney strikes a pose similar to Britney Spears’ from her historic style moment. Photographer: Cibelle Levi

The inspiration behind her outfit came from Britney Spears’ “Circus” album cover art, known for its glittering, circus-themed imagery. The look aligns perfectly with the playful, space-themed vibe of her party.

On her Instagram, Sweeney shared several snaps from her celebration, captioning it “welcome to planet syd 👽🛸🚀”. She appeared alongside friends in various space costumes, with guests including Wiz Khalifa, Diplo, Glen Powell, and Lauren Sanchez Bezos—dressed as aliens, astronauts, and space cowboys.

Sydney Sweeney with Glen Powell at her party — Sweeney with Glen Powell, dressed as an astronaut. Source: Sydney Sweeney/Instagram

The theme was a fitting continuation of her recent trip to Utah, which she playfully described as a “little trip to Mars” on social media. While Britney Spears did not attend, her early-2000s style echoed prominently in Sweeney’s celebration, making for a truly out-of-this-world event.