The "Lavender Haze" singer, 33, was captured on video leaving Arrowhead Stadium in Kansas City, Missouri, on Sunday night with the Kansas City Chiefs tight end, also 33, by her side.
As the two walked together other on their way out of the building, Swift smiled briefly at the camera and appeared to say "bye." Kelce, dressed in a patterned two-piece outfit, also shot a smile and brief nod to the camera.
Swift was part of the crowd cheering on the Chiefs in their matchup against the Chicago Bears Sunday. She watched the on-field action from Kelce's suite with the athlete's mother, Donna Kelce. The pair could be seen sitting shoulder-to-shoulder and chatting and laughing together throughout the game.
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The Grammy winner showed her team spirit by wearing a red-and-white Chiefs jacket, which was later tied around her waist as she left the stadium. Footage from the game, shared by Fox Sports on X, showed Swift smiling, cheering and clapping enthusiastically as she watched Kelce and his teammates. At one point, she even raised her hands in the air in excitement.
Swift's stadium appearance comes just days after Kelce invited her to attend the game while appearing on The Pat McAfee Show podcast. A source told PEOPLE that once Swift heard about the invite, she didn't let a busy schedule stop her from accepting.