Taylor Swift, Travis Kelce burst into song at his house: friend

Taylor Swift isn’t the only singer in the relationship.

The pop star and her boyfriend, Travis Kelce, belted out “Teenage Dirtbag” around a firepit during a late-night hang at his house, according to a friend of the Kansas City Chiefs player.

The unnamed pal told WSJ. Magazine in a cover story published Monday that the pair are “two peas in a pod” while recalling Swift, 33, and Kelce, 34, singing, “This must be fake / My lips start to shake / How does she know who I am?”

The athlete told the publication that he did not necessarily remember bursting into the Wheatus duet with the Grammy-winning performer.

However, he acknowledged, “There was some wine involved, for sure.”

Kelce gave insight into the start of their romance elsewhere in the interview — even though he admitted Swift would “probably hate [him] for” spilling the beans.

“There were definitely people she knew that knew who I was, in her corner,” he explained of getting a text from Swift after attending her Eras Tour in July.

While the “Catching Kelce” alum shared that he “had somebody playing Cupid,” he did not identify the individual.

He did say that the mystery person “told [him] exactly what was going on and how [he] got lucky enough to get [Swift] to reach out.”

News broke in September that Kelce and Swift had been “hanging out” for “months.”

The songwriter began showing her support at his NFL games that same month, sitting in Kelce’s suite with his family and friends.

The pair hard-launched their romance in New York City the following month, holding hands on back-to-back dates.

Following Swift’s Nov. 11 show in Argentina, they kissed publicly for the first time.

Follow Page Six’s coverage of Travis Kelce and Taylor Swift’s whirlwind romance

Kelce looked back on their first date Monday, saying, “We had already kind of been talking, so I knew we could have a nice dinner and, like, a conversation, and what goes from there will go from there.”

Swift, for her part, has yet to speak about her and Kelce’s connection.

The NFL tight end noted in a September “New Heights” podcast episode that his girlfriend is “not in the media as much,” which was why he planned to only talk about sports “moving forward.”

While Swift has indeed kept quiet about their budding romance, she did change the lyrics to her song “Karma” when Kelce was in the audience earlier this month to shout out “the guy on the Chiefs.”

The chart-topper is currently touring in Brazil, with a previously postponed show scheduled for Monday night causing her to miss Kelce’s upcoming home game against the Philadelphia Eagles.