Travis Kelce’s No. 1 fan.
“Look at him,” the singer, 33, could be seen saying to pal Blake Lively in the stands.
The Grammy winner, who was rocking a red lip, a black long-sleeve shirt, bedazzled Daisy Dukes and high-heeled boots, leaned in to imitate how Kelce celebrated by hitting his teammates post-win.
One of her playful punches accidentally connected with her friend Ashley Avignone’s forehead.
Lively, 36, giggled in response.
Social media users gushed about the quick clip over the weekend.
“She is smitten as a kitten 🐱 ❤️,” one fan wrote via Instagram, while another added, “She literally can’t believe she’s with the hottest athlete.”
Others fangirled over Swift’s friendship with the “Gossip Girl” alum, with one joking, “Spotted… Serena Van Der Woodson and Taylor Swift at the Chiefs game …xoxo.”
Lively’s husband, Ryan Reynolds, was also present in the suite at the MetLife Stadium game, as well as Sophie Turner, Sabrina Carpenter and more of Swift’s buds.
The songwriter even spent some time with Kelce’s teammate Patrick Mahomes’ wife, Brittany Mahomes.
The 28-year-old joined Swift and her friends for a night out on Saturday, with the group dining at Emilio’s Ballato in Soho.
While Kelce, 33, was not present at the time — eating at Meduza Mediterrania in the Meatpacking district instead — he was spotted leaving Swift’s NYC apartment the following morning in an “I’m not doing s—t today” tee.
Kelce and the American Music Award winner left Sunday’s game separately.
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The event marked Swift’s second time supporting Kelce, with the performer making her first appearance at a Chicago Bears game at Arrowhead Stadium in Missouri last weekend.
Three days later, Kelce called Swift “ballsy” for showing up and said she “looked amazing” in the audience.
The duo are “having fun” in the “super early days” of their romance, a source told People last week.