The source said Swift and Kelce “showed up together and were cute and normal, just hanging out and chatting.” Among those in attendance were Kansas City Chiefs quarterback Patrick Mahomes, who shared in a press conference on Wednesday that Swift is “really cool, good people.”

TMZ

Before the party, the singer-songwriter and athlete were seen leaving Sunday’s game in Kelce’s 1970 Chevelle 408 Stroker convertible, which an insider told PEOPLE is from his “personal collection.”

Taylor Swift and Travis Kelce at postgame party.

TMZ

At the game, Swift was captured sitting in a suite next to Kelce’s mom Donna, and jumping up and down after he scored an impressive touchdown. A clip of the moment was shared by the NFL on X and has acquired over one million views.

According to Fox Sports, the game had 24.3 million viewers, making it the week’s highest-rated telecast on any network. Kelce’s jerseys also saw a boost in sales, per Fanatics, the NFL’s e-commerce partner.

Kelce, 33, reflected on Sunday’s game in the latest episode of his podcast, New Heights with Jason and Travis Kelce.

“I just thought it was awesome that everybody in the suite had nothing but good things to say about her,” he said. “The friends and family … she looked amazing and everybody was talking about her in great light and on top of that the day went perfect for Chiefs fans, of course.”

The Ohio native noted that it was a game he was going to remember for many reasons.

“To see the slow motion chest bumps, to see the high fives with mom, to see how, you know, Chiefs kingdom was all excited that she was there, that s— was absolutely hysterical and it was definitely a game I’ll remember that’s for damn sure and then we just slid off in the getaway car at the end,” he said.

A source previously told PEOPLE that the game was also “Taylor’s first time meeting his mom and dad, and everyone was enjoying themselves. She was super chill and low-key hanging out with his friends and family.”