She’s in her party era.

Taylor Swift took fun photo booth pictures with friends at Patrick Mahomes’ 29th birthday party in Kansas City, Mo., Sunday night.

After the Kansas City Chiefs beat the Cincinnati Bengals at Arrowhead Stadium, Brittany Mahomes hosted a birthday bash for her husband at their palatial mansion.

Taylor Swift, seen above at the Kansas City Chiefs game Sunday, took fun photo booth pictures with friends at Patrick Mahomes’ 29th birthday party.chariah_/Instagram

The “Bad Blood” singer made silly faces with fellow WAGs Sheawna Weathersby and Chariah Gordon on Sunday.sheawna.kiara/Instagram00:0304:15

A pregnant Brittany Mahomes gave fans a sneak peek into the lavish get-together for her husband.brittanylynne/Instagram

During the festivities, the “Bad Blood” singer, 34, posed for pictures in a photo booth with fellow WAGs Sheawna Weathersby, the wife of Chiefs defensive tackle Chris Jones, and Chariah Gordon, the fiancée of Chiefs wide receiver Mecole Hardman.

In the snaps shared on Weathersby’s Instagram Stories, Swift posed with red cat-eye sunglasses as she made silly faces alongside the women.

“w/ love,” Weathersby captioned the post.

It featured a massive balloon arch and a sculpture created with silver balls and red LED lights.brittanylynne/Instagram

There were also custom plastic cups and koozies with a childhood photo of Patrick’s face on them.brittanylynne/Instagram

The NFL star blew the candles out on his epic cookie cake.brittanylynne/Instagram

Brittany, 29, gave fans a sneak peek of the lavish get-together, which featured a massive balloon arch, a cookie cake, a sculpture created with silver balls and red LED lights, supersized throwback photos of the quarterback as a kid and custom plastic cups and koozies with a childhood photo of Patrick’s face on them.

The party came right after the Chiefs beat the Bengals by one point.

Swift showed up to support her boyfriend, Travis Kelce, alongside her mom, Andrea Swift, for the nail-biting game, stunning in a vintage oversized T-shirt dress and black thigh-high Giuseppe Zanotti boots.

The party came after Taylor showed up to support her boyfriend, Travis Kelce, and watch the Chiefs beat the Bengals.Jay Biggerstaff-Imagn Images

The pop star stunned in a vintage oversized T-shirt dress and black thigh-high Giuseppe Zanotti boots.Icon Sportswire via Getty Images

At the game, Swift posed with Gordon and Weathersby in front of an Eras Tour poster in a suite at Arrowhead Stadium.sheawna.kiara/Instagram

At one point, the 14-time Grammy winner could be seen celebrating one of the team’s touchdowns with her brother, Austin Swift.

Taylor also posed alongside Gordon and Weathersby in front of an Eras Tour poster in Kelce’s Arrowhead Stadium suite during the game.

The Chiefs’ next game will be against the Atlanta Falcons on Sunday.