Sydney Sweeney's Inappropriate Wedding Guest Look Turned Heads For The Wrong Reasons

Some celebrities appear on the scene as instant style icons, and if you ask us, Sydney Sweeney is one of them. While the "Anyone but You" actor has occasionally been critiqued for being almost too put together in her meticulously curated ensembles, her flawless styling also earns Sweeney a lot of praise. Of course, her fashion sense is still on a journey, like everyone else's. For instance, Sydney Sweeney has undergone a style transformation since starring in "Euphoria," and a reputation for impeccable taste isn't enough to save the star from the occasional faux pas — even at a classic affair like a wedding.

From color and silhouette to just-right accessorizing, nailing that perfect 'fit for a special occasion can be tough. But when it comes to a loved one's big day, it's just as important to recognize what not to wear to a wedding. Unfortunately, Sweeney seems to have missed that memo while playing the real-life role of wedding guest in March 2025, drawing mixed media attention with her feminine gown.

It's well-known that Sydney Sweeney shares a close friendship with "Anyone but You" co-star Glen Powell, and their connection has even spawned occasional rumors of romance. Evidently, this closeness extends to Glen's sister, Leslie Powell, as Sweeney was included on the guest list for her wedding. Sweeney turned up to the event in a corseted, light-blue gown from V. Chapman. Naturally, she looked stunning, but some fans questioned Sweeney's dress selection. While the look's revealing sweetheart neckline and semi-sheer panels might have raised a few eyebrows on their own, onlookers were most concerned with the gown's hue.

White garments are obviously a no-go for anyone but the bride, but that's not the only fashion rule for wedding guests. It's often argued that you shouldn't wear pastels to a wedding, either, and Sweeney's desaturated gown was definitely in violation of such etiquette. "That is not an appropriate shade of blue for a wedding," one critic argued on X, formerly known as Twitter.

Giving Sweeney the benefit of the doubt, some fans debated whether Leslie had okayed the color choice ahead of time. However, one X user felt that the question may be moot, writing, "The bride wouldn't have said no to a celebrity." Look at it this way: Friendly or not, would you have the guts to veto an A-lister's ensemble for your wedding? If a legion of netizens can recognize the gown's inappropriate vibes, a proven fashionista should know to avoid such an obvious sartorial controversy.

Whether or not you personally think that Sydney Sweeney's look verges on being too bridal, there's evidence that Sweeney herself should have noticed the uncomfortable similarity. Following her romantic split from fiancé Jonathan Davino, Sweeney boldly chose to attend CinemaCon 2025 in literal bridal separates from Wiederhoeft — specifically, the $4,182 Julie Corset and its matching $2,135 Julie Skirt, both in silver satin. And we can't help but notice a resonance between the two 'fits, from their structural boning to their frosty undertones. With such wedding looks on her recent style radar, Sweeney should have clocked that her sweetheart gown for Leslie Powell's nuptials was tiptoeing into bridal territory.

Fortunately — and despite all the hullabaloo online — Sweeney's dress hasn't seemed to cause any drama between her and the Powell family. "We love Sydney," Cyndy Powell, Glen and Leslie's mother, told the Daily Mail. "She's really a friend and we all enjoy her." There's been no outcry from Leslie Powell, either. As one user wrote on X, "The bride doesn't seem to give a f*** about the dress color, but everyone on Twitter does."

One photo even hints that the pale-blue shade of Sweeney's gown may have fit the event's dress code. A group shot on Instagram shows several other guests in icy gowns, putting Sweeney's choice into context. With all of this in mind, it may be time to forgive and forget the actor's potential breach of wedding-day etiquette. Besides, this is just one of many times that celebs wore potentially inappropriate outfits to other people's weddings, and Sweeney isn't even close to being the worst offender.