The Kansas City Chiefs pulled off a dramatic victory over the Cincinnati Bengals on Sunday and their most famous fan was on hand to celebrate.

Taylor Swift, who is in a relationship with Chiefs star tight end Travis Kelce, was spotted partying with friends from a box at Arrowhead Field. The pop star also attended Kansas City’s Week 1 win over Baltimore.

Kelce didn’t have a great performance on Sunday, with just five yards on one reception and one yard on one rushing attempt. But he was probably only interested in helping the Chiefs win.

It was a relatively quiet night of attack for the Chiefs and Bengals, considering the many high-scoring games this season has produced.

The two teams traded field goals in the first quarter before both teams added a touchdown to start the second quarter. The Bengals then added a pair of field goals to make it 16-10 at halftime.

The second half saw Kansas City and Cincinnati go back and forth, with the Bengals holding a 25-23 lead for most of the fourth quarter. Down by two points and with time ticking away, the Chiefs managed to get within range of a field goal with just seconds left, and Harrison Butker fired a 51-yard field goal for the win.

That dramatic ending gave Swift plenty of reason to celebrate, and she hopes to continue celebrating all year long as she cheers on Kelce and the Chiefs.