Okay, I never thought I could like Ariana Grande in a hairstyle more than her iconic slicked-back ponytail (I mean, she’s literally the reason I contemplated getting hair extensions). But her Oscars glam just might be Ari’s best hair look yet. To no one’s surprise, she looked absolutely stunning walking the red carpet in her Glinda-esque Schiaperelli gown, but instead of her long sleek ponytail, she topped the look off with an elegant ballerina bun—a 2025 hair trend our editors have been highly anticipating.

And Ari isn’t the only celeb opting for the updo moment tonight. Elle Fanning also hit the carpet wearing a high bun, further proving this hair trend is here to stay and is totally Oscars-approved. Not only is a polished bun so timeless, but it’s also so easy to achieve at home. All you need? A strong-hold wax stick or hairspray to help slick down flyaways and baby hairs, and a boar bristle brush to seriously smooth it all out. And voilà—red-carpet-worthy hair in minutes. Celebs—they’re just like us!

I *will* be headed into the office this week with the same exact hair style. Wanna try the updo for yourself? Shop some of Cosmo’s favorite hair-slicking products below!

Hair Wax Stick
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Slick Stick
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A bun is a great canvas for another huge hair trend moment: embellished accessories. Add some jewelry to your ponytail or bedazzled clips into your hair. Or go Ari’s route by keeping things super minimal (she had to show off her R.E.M. Beauty glam, obviously).

Need a little DIY tutorial for the whole bun look? I got you. Start by pulling your hair upward to your desired height, and apply a wax stick along the top and sides of your hair to smooth flyaways and add some extra hold. Then take a boar bristle brush and comb through your hair to evenly distribute the product and even out any bumps to create a sleek finish. Once everything is smoothed out to perfection, gather your hair and tie it into a ponytail. Then wrap your hair around the base of the hair tie to create a twisted bun finish!