Taylor Swift leveled up to auntie status over the weekend. Just a day after celebrating her 36th birthday, the pop superstar cheered on Travis Kelce at Arrowhead Stadium, armed with the cutest cheer squad: the NFL star's nieces.On Sunday, Dec. 14, the Love Story songstress popped up in Kansas City to support her fiancé against the Los Angeles Chargers, alongside Kylie Kelce and her kids. Multiple clips circulated online, featuring the music icon with Kylie and Jason's daughters: Elliotte Ray (4), Wyatt Elizabeth (6), Bennett Llewellyn (2), and Finnley "Finn" Anne (8 months).In a fan-taken footage, Taylor Swift is seen carrying one of the children in her arms. The moment, albelt quickly, garnered reactions from fans across social media platforms."Chiefs fighting for their playoff lives while Taylor Swift's ring is catching more light than the stadium LEDs," one wrote on X/Twitter."Aunt Tay out here collecting squad goals and touchdown vibes," another added."omg this is so cute I love Taylor swift and she's going to make a great mom someday aww," an online user commented."I love that these kids are going to call her Aunt Taylor," one shared.Taylor Swift honored by Eras Tour dancer: "I'm honored to be in your orbit"Taylor Swift's auntie moment comes a day after she celebrated her 36th birthday.On Saturday, her dancer, Kam Saunders, took to Instagram to honor her after working together during her historic Eras Tour, accompanying his heartfelt message with a photo of them together. He wrote:"To my girl… my boss lady! It’s been three years now that we've gotten to have this moment. And each year my love for you grows deeper and deeper. You are such an astounding human being!" View this post on Instagram Instagram PostThe singer's tour collaborator went on:"I'm honored to be in your orbit. The laughs. The love. The affirming. The care. The generosity. I just— thank you! Here’s to a lifetime of more of these moments together. Happy Birthday, gorgeous!"Kam Saunders concluded his tribute to Swift with a heartwarming tag that says "She Protects The Family," lauding the Bejeweled hitmaker's character.Meanwhile, amid her birthday celebration, the pop star also debuted the first two episodes of her six-part documentary, Taylor Swift: The Eras Tour - The End of an Era, which documented every special moment from her epoch-making world tour. View this post on Instagram Instagram PostThe docuseries also features a scene of a phone call between Swift and Travis Kelce ahead of her London show, which she dubbed a "vitamin drip."Recalling, the couple got engaged in August as the Kansas City Chiefs proposed to the pop icon amid a floral-laden venue.The pair will reportedly tie the knot in June 2026 in the Watch Hill neighborhood of Westerly, Rhode Island.