AceShowbiz - Taylor Swift stepped into the WAG era, celebrating a Kansas City Chiefs win at Arrowhead Stadium and joining the party with her boyfriend Travis Kelce and Chiefs WAGs (wives and girlfriends of players) Chariah Gordon and Sheawna Weathersby.

After the Chiefs' nail-biting victory over the Cincinnati Bengals, the trio posed for adorable photos in the photo booth at Patrick Mahomes' early birthday celebration on Sunday, September 15. Swift sported Chiefs colors and rocked red sunglasses in the shots, paying homage to her iconic "Red" era. The photo booth strips read, "Happy Birthday Patrick" and "Straight Outta '95" below their smiling faces.

Patrick Mahomes, who turns 29 on Tuesday, September 17, enjoyed the lavish birthday bash organized by his wife Brittany Mahomes. Swift joined the festivities after cheering on Kelce and the Chiefs with Gordon, Donna Kelce and HAIM band members Danielle Haim and Este Haim.

Swift's mother Andrea and brother Austin also attended the game, with Andrea sporting a pin that read "in my 87 era," referencing Kelce's jersey number and Swift's "Eras Tour". The Chiefs clinched a narrow win with a 51-yard field goal in the final seconds.

Earlier in the week, Swift made history at the MTV VMAs, breaking multiple records and tying with Beyonce Knowles for the most wins at the annual awards show. During her acceptance speech, she gave a sweet shoutout to Kelce for bringing "happiness, fun and magic" to her "Anti-Hero" music video shoot.