The pop star Taylor Swift and the football player Travis Kelce are engaged.

“Your English teacher and your gym teacher are getting married,” the couple captioned a joint post on Instagram announcing the news on Tuesday, adding a dynamite emoji and a snippet of Ms. Swift’s song “So High School.”

In the first photo, Mr. Kelce is shown on bended knee below Ms. Swift, who is wearing a striped dress and standing under an elaborate floral arch. A later photo shows Ms. Swift sporting a large ring.

The news came just a few weeks after Ms. Swift appeared on Mr. Kelce’s “New Heights” podcast, which he hosts with his brother, Jason, in one of her most in-depth interviews in years.

That “New Heights” was the vehicle for such an interview was fitting. In 2023, Mr. Kelce tried and failed to give Ms. Swift his number at one of her concerts on her Eras Tour. He recounted the misfire on an episode of “New Heights” in July of that year, and that was how he caught Ms. Swift’s attention.

“This all started when Travis very adorably put me on blast on his podcast, which I thought was metal as hell,” Ms. Swift told Time magazine of the couple’s relationship. “We started hanging out right after that. So we actually had a significant amount of time that no one knew, which I’m grateful for, because we got to get to know each other. By the time I went to that first game, we were a couple.”

She also addressed his having called her out in the podcast interview, joking about how he made his failure to get a meet-and-greet everyone’s problem.