Abigail Anderson wore one of BFF Taylor Swift’s favorite fashion brands for her wedding rehearsal dinner

Taylor Swift and Abigail Anderson have been close friends for more than two decades, so it’s no surprise they’re on the same style wavelength.

The Grammy winner’s redheaded BFF was spotted heading to her wedding rehearsal dinner at Madison Square Garden Thursday wearing a butter yellow slip from Reformation, one of Swift’s go-to fashion labels.

Featuring a cowl neckline and a detachable sheer cape for a little extra drama, Anderson’s Lilibeth Silk Dress retails for $328 and is also available in powder blue, navy and a bright berry color.

Anderson — who styled the sleek maxi with a sculptural gold Cult Gaia clutch, strappy sandals and a very TS-coded red lip — will be in stylish company at MSG tonight.

Others attending Swift and Travis Kelce’s pre-wedding soirée include Gigi Hadid and boyfriend Bradley Cooper, Jack Antonoff and sister Rachel, and bridesmaid Selena Gomez, the latter of whom wore a black lace dress paired with plenty of dazzling diamonds.

The latest on Taylor Swift and Travis Kelce’s wedding

Swift’s been a fan of Reformation’s cool-girl dresses, cashmere pieces and polished yet practical shoes for well over a decade, and the LA-based label’s a firm fixture in her street style rotation.

Just last month, the “Opalite” songstress wore one of Ref’s floral frocks — likely the Everett Linen Dress — to announce her contribution to the “Toy Story 5” soundtrack, “I Knew It, I Knew You.”

She’s also been spotted in the brand’s Jadey Cashmere Oversized V-Neck Sweater, Waldena Block Heeled Mule and Agathea Chunky Loafer, among other standout styles.

As for whether Reformation will earn a spot in Swift’s wedding-weekend wardrobe? We’ll just have to wait and see.

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This article was written by Elana Fishman, Page Six’s Style & Shopping Director. A passionate Swiftie and pop culture fanatic, Elana applies her celebrity fashion and beauty expertise to shoppable content for fellow fans as the host of video series including Currently Trending, Style Trial, Heart to Cart and Beauty Scoop — and by tracking down every Taylor Swift-worn style so you can shop it, too. Elana consults celebrity stylists on the latest street style and red carpet trends and predictions, researches which celebrity-backed brands and products are worth it and chats with the stars themselves for beauty and fashion recommendations. Prior to Page Six Style’s inception in 2018, Elana covered celebrity fashion at Vox Media, Lucky, Marie Claire and Teen Vogue.