Taylor Swift celebrated Travis Kelce's touchdown with some colorful language while watching the Chiefs game with his mom

Taylor Swift once sang: "In your life, you'll do things greater than dating the boy on the football team."

She didn't know it at 15. But 12 Grammys, three Albums of the Year, an Emmy, and more than 200 million sold records later, she sure knows it at 33.

Still, the iconic singer-songwriter hasn't strayed so far from her teenage roots. It appears she is, in fact, "dating the boy on the football team" — well, more like "The Man" — and even getting chummy with his mom.

Swift attended this weekend's Chiefs game at Kansas City's Arrowhead Stadium, where she sat in Travis Kelce's suite alongside his mom, Donna Kelce. The pop star and tight end had been rumored to be dating in recent weeks.

When Kelce — already considered one of the best tight ends in NFL history — hauled in a touchdown pass from superstar Chiefs quarterback Patrick Mahomes in the third quarter, Swift rose to her feet and cheered.

After chest-bumping with another spectator in the box, the singer appeared to shout "Let's fucking go!" as Mama Kelce smiled and applauded.

Kansas City went on to crush the Chicago Bears 41-10, while Kelce finished the game with 69 yards on seven catches. He and the Chiefs — now 2-1 on the season — have an eye on defending their 2023 Super Bowl title.

After the game, Kelce and Swift were seen walking out of the stadium together and, later, driving off in his old school convertible. Neither party has officially confirmed their relationship, but Swift seems to be back in her "Red" — and gold — era.