Joshua Goldman
Joshua Goldman
min read · September 30, 2025 · Entertainment

Ashton Kutcher's Hilarious Photobomb at Sydney Sweeney’s Star-Studded Birthday Bash!

Ashton Kutcher was among the various celebrities at Sydney Sweeney's star-studded birthday bash; pictured in May

Sydney Sweeney's Star-Studded Birthday Bash: A Cosmic Celebration of Celebrities and Scandal

The sun-kissed shores of Sydney Sweeney's 28th birthday party were abuzz with glamour, glitz, and a dash of scandal, as the blonde bombshell celebrated another year of life in style. The Euphoria actress took to Instagram on Monday to share photos from her intergalactic-themed soiree, which featured a who's who of Hollywood A-listers, including Ashton Kutcher, who made a rather awkward photobomb appearance.

Sweeney, looking like a million bucks in a metallic silver mini dress, posed for the camera with two male partygoers as she flashed her signature megawatt grin. The actress captioned the album "welcome to planet syd," giving fans a glimpse into her out-of-this-world celebration.

The 47-year-old actor was in attendance, and made an awkward photobomb in one of the outtakes

But Kutcher's antics stole the show, as he made a rather awkward photobomb in one of the outtakes. Clad in a black jacket and matching wide-brimmed hat, the 47-year-old actor showed up at the perimeter of one of the pictures, looking like a relic from another galaxy. Sweeney, meanwhile, was surrounded by two other male partygoers, who seemed oblivious to Kutcher's presence.

The guest list read like a Who's Who of Hollywood, with Euphoria co-star Glen Powell joining in on the fun, dressed in an astronaut suit that would put NASA to shame. Lauren Sanchez, Wiz Khalifa, and Diplo also made appearances, with the latter spinning a DJ set that kept the party going all night long.

As the celebrations reached new heights, Sweeney's Instagram post became a hotbed of celebrity gossip, with friends and acquaintances chiming in with birthday wishes and thinly veiled jabs at her father. Movie producer Glen Powell cheekily wrote, "HAD A BLAST," accompanied by rocketship and alien emojis, while Euphoria co-star Maude Apatow exclaimed, "WOWEEEEEEEE." Soap opera star Kayla Ewell added to the chorus of birthday wishes, writing, "love you, Syd ❤️ happy birthday!! always the best time together."

Ashton's party appearance comes after he announced a bold business move in August: an investment in Soho House

But Kutcher's business dealings were also making headlines in recent weeks, as he announced a bold move to invest in Soho House, the exclusive members club beloved by A-listers. The 47-year-old actor took to Instagram in August to inform his 4.9 million followers that he would be joining the board of the company, which is set to become private after a $2.7B deal led by New York-based MCR Hotels and private equity firm Apollo.

The move has raised eyebrows among Soho House members, who have expressed concerns about the club's recent financial struggles and complaints about its loss of starry value. As one insider revealed, "Soho House was once the ultimate status symbol for A-listers, but in recent years it's become a hot mess. The glamour and privacy that members were paying top dollar for has waned, and now Ashton is coming in to 'rescue' the company? It's a bit rich, don't you think?"

With Kutcher's photobomb antics still making waves on social media, fans can't help but wonder: what other secrets are hiding behind the glamorous facade of Sweeney's birthday bash?

The former Hollywood 'it boy' has been married to Mila Kunis since 2015; pictured in September 2024