Travis Kelce with Jason Kelce Christmas duet joins Taylor Swift at Billboard top.

Travis Kelce has joined his pop-superstar-significant-other Taylor Swift at the top of the Billboard charts.

The duet single, in which the brothers reworked the lyrics of The Pogues' song from the '80s, "Fairytale of New York," is featured on a forthcoming charity Christmas album

It's "a tale of two brothers whose love for each other withstands the test of time," according to the album's Instagram account.

That song was fun. That song was actually pretty sweet, man. I enjoyed doing it.

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The guys, the team, came out and hung out with me in Kansas City for a few hours and we knocked it out

Fortunately for the NFL stars, the day after the song's debut, it topped the iTunes charts.

"One thousand percent," Travis agreed. "Thanks, Taylor. Appreciate you. And thank you to the Swifties."

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