Karma is the guy on the Chiefs is attending his 11th international Eras Tour concert.

Travis Kelce brought his best friend and Kansas City teammate Patrick Mahomes and Mahomes' wife Brittany to the final Taylor Swift concert in Amsterdam.

Fans captured a video of the three in a suite overlooking the cram-packed Johan Cruijff Arena. Kelce danced as Swift's "Lover" played in the background.

The tight end's first worldwide stop was in Buenos Aires, Argentina, followed by Sydney, two nights in Singapore, the final night in Paris, all three nights in London (where he made a cameo), one night in Dublin and two nights in Amsterdam. Swift has changed the “Karma” lyrics to "guy on the Chiefs" every time her boyfriend has cheered from the audience.

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Travis Kelce joined Taylor Swift's dancers onstage in London

In June, Kelce surprised 89,000 fans inside Wembley Stadium in London by joining dancers Jan Ravnik and Kameron Saunders onstage. He carried Swift to the bright red lipstick couch, as part of a bit to revive her so she could sing "I Can Do It With a Broken Heart."

On the Season 2 final episode of Kelce's "New Heights" podcast, he told his brother Jason the story behind joining the Eras Tour cast.

"I initially mentioned it to Tay," he said. "I was like, 'How funny would it be if I just rolled out on one of the bikes during the "1989" era?' She started laughing. She was like, 'Would you seriously be up for doing something like that?' And I was just like, 'Are you, what? I would love to do that. Are you kidding me?' "

The latest on Taylor Swift:The Eras Tour star sings love mashup for Travis Kelce in Amsterdam

Although he didn't appear during "1989," his debut during her "Tortured Poets" set social media on fire.

"The one thing I told myself is, 'Do not drop the baby,' " he said on the podcast. "Do not drop Taylor on your way over this damn couch. The golden rule was, do not drop Taylor. Get her to the couch safely."

'This happens once every few lifetimes'

For Swift's 87th show in April, she dedicated part of her Paris acoustic set to number 87 on the Chiefs.

"Can you believe this is the 87th show?" she said in La Défense Arena before performing a mashup of "The Alchemy" − the song off "Tortured Poets" fans speculated was about him − with love song "Treacherous" off "Red (Taylor's Version)."

Swift's next stop is Zurich, where she will play two shows on Tuesday and Wednesday.

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