Taylor Swift and Travis Kelce ’s hearts were on overdrive Sunday as they sang along to The Darkness ’ “I Believe in a Thing Called Love” while attending the men’s singles final at the US Open . The pop superstar and Kansas City Chiefs star, who were seen at the match with quarterback Patrick Mahomes and his wife Brittany Mahomes, watched from the stands at Arthur Ashe Stadium as Jannik Sinner beat Taylor Fritz to win the major title. Cameras caught Swift rocking shades and a red-and-white checkered sundress as she belted out the lyrics to the British rock band’s 2003 track mid-match.

At times, she touched and locked eyes with her boyfriend, who donned a Gucci bucket hat and a cardigan to the occasion. “I believe in a thing called love, just listen to the rhythm of my heart. There’s a chance we could make it now, we’ll be rocking ’til the sun goes down.

I believe in a thing called love,” the two sang. One clip on social media shows Kelce tossing up the sign of the horns while Swift, in a separate video, is seen breaking out an air guitar. Taylor and Travis believe in a thing called love 🎵 pic.

twitter.com/L1gjkO5MoI Swift has previously rocked out to the song, which stems from The Darkness’ debut album “Permission to Land.” The pop superstar, in a 2016 ad for Apple Music, mouthed the lyrics to the song as she danced “like no one’s watching.

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