Taylor Swift and Jason Kelce appeared to be having a fantastic time bonding as they cheered for Travis Kelce.

The 34-year-old Grammy-winning musician watched the Chiefs play the Bills on Sunday at Highmark Stadium in New York with her boyfriend’s brother, Jason, 36, and his wife, Kylie, 31.

A clip from the game went viral in which Jason pulled off his shirt in a raucous celebration after his younger brother scored a touchdown in the freezing cold temps.

In the heat of the moment, Jason even dived into the Bills fans seated on the level below, clutching his beer can in one hand and removing his shirt.

A video from inside the VIP suite shows a stunned Swift give Jason a high-five as he walks through the box without his shirt. She appeared to exclaim “Oh my god!” after pulling her jaw up from the floor in the boisterous moment.

While Kylie appeared unconcerned with her husband’s antics in earlier video footage, she later appeared to yell at Jason as he pushed his way to the front of the box.

“Taylor hyping him up while Kylie tells him no is sending me [crying emojis],” the person said in the caption.

Another wrote, “The high fives hahahaha.” Jason and Taylor may be a pleasant chaos together.

In another video, Jason’s friend inside the apartment tells the girl dad, “Hey, Kylie said to get you’re a*s back in here.”