Swift expressed her admiration for her BFF’s new single, ‘Single Soon,’ which was released on Friday.

Taylor Swift is showing her love for her BFF Selena Gomez, who just released her first single in nearly a year.

“Single Soon,” a sultry, upbeat dance track, dropped on Friday, and Gomez wasn’t only feeling the support from her fans after the release — her best friend joined in, too.

“When your bestie is the bestest,” Swift, 33, wrote on her Instagram Story Saturday as she reshared a reel originally posted by Gomez, 31, featuring several clips from the song’s music video.

“Will be dancing to this forever methinks,” Swift added of the Benny Blanco- and Cashmere Cat-produced track.

Gomez reposted the “Anti-Hero” singer’s post on her own Instagram Story on Sunday.

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“Single Soon” is “a playful anthem about being comfortable in your own skin and loving your own company,” Gomez wrote on Instagram, adding that “it’s also really fun to dance to!”

The song also serves as a teaser for the Only Murders in the Building star’s upcoming album, tentatively titled SG3, which she has been working on for much of the last year.

She shared on Instagram that she’s “not quite done” with the record, but she wanted to put out the “fun little song” that she said is “perfect for the end of summer.”

The Rare Beauty founder even brought her younger sister, 10-year-old Gracie Teefey, in on the fun as she recorded the single.

“Hi. Love you, sissy. Never worry about boyfriends. At all,” Teefey said in the opening scene of the song’s music video, which Gomez shared a clip of on Instagram.

Swift and Gomez’s friendship has been a fan favorite for a long time. Despite the fact that both stars are typically discreet about their personal lives, they have made a number of public appearances together this year.

In April, Gomez and her sister attended one of Swift’s Eras Tour events in Arlington, Texas, where the pop artist gave Gracie her hat in the middle of her Red mega hit “22,” as is customary on the tour.

The couple also celebrated July 4th together, nearly breaking the internet with a series of photographs from their star-studded holiday celebration.

Swift and Gomez were accompanied by the musical Haim sisters, Este, Danielle, and Alana, as well as stylist Ashley Aivgnone and model Sydney Ness, who was previously linked to Swift’s brother, Austin.

The images included the group of girls posing in swimwear, as well as a series of polaroid photos taken throughout the vacation. Swift posed with her arms around Gomez’s shoulders in one photo, while the camera caught the pair mid-laugh.

Gomez took her sister to watch Swift’s Eras Tour earlier this month, when the “Lavender Haze” singer played five sold-out gigs in Los Angeles’ SoFi Stadium to close out the tour’s U.S. leg. She stayed low-key in the VIP tent for the show, but she did tweet a snapshot of the several dozen friendship bracelets she received from fans.

“Thank you to the fans who traded with me,” she captioned the photo of her impressive collection.