Katy Perry says she and Taylor Swift 'fight like cousins' after rumors they're distantly related

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Katy Perry and Taylor Swift squashed their beef last year, and now it's rumored the two singers might actually be related.

During an interview on "Capital Breakfast With Roman Kemp," Sian Welby asked the "Firework" pop star about the theory circulating online that she and Swift are ninth cousins.

"Well, we fight like cousins," Perry said.

TAYLOR SWIFT MAKES KATY PERRY COOKIES FOLLOWING YEARS OF FEUDING

Roman Kemp said that "someone has literally written, like, a full thing" on MyHeritage.com.

Perry responded, "Wow, I'm going to have to ask her if this is true or if we should, like, get blood tests together or something."

Katy Perry (L) and Taylor Swift (R)  (Reuters/AP)

The pair famously stopped feuding after Perry appeared in Swift's music video for her song "You Need to Calm Down."

“It was important to make that appearance in the music video because people want people to look up to,” Perry told Australia's Stellar magazine in February. “We wanted it to be an example of unity. Forgiveness is important. It’s so powerful.”

KATY PERRY SAYS SHE WOULD BE OPEN TO WORKING WITH TAYLOR SWIFT ON A SONG

Both women used the opportunity to set an example for their young female fans.

“It was actually just a misunderstanding but we have such big groups of people that like to follow us, and so they kind of started turning against each other a little bit too,” Perry told Ellen DeGeneres last year during an appearance on her talk show.

“Then we started seeing each other out and about and I just would walk up to her and say, ‘Hey, how are you?’” she shared. “It’s like, we have so much in common — there’s probably only 10 people in the world that have the same things in common — I was like, ‘We should really be friends over that and share our strengths and our weaknesses and our challenges. We can help each other get through a lot.’ Because it’s not as easy as it seems sometimes.”

KATY PERRY SAYS THAT SHE TEXTS 'A LOT' WITH TAYLOR SWIFT AFTER ENDING FEUD

Swift echoed Perry's thoughts in her own interview with told BBC Radio 1. She said they've both “grown past allowing ourselves to be pitted against each other.”

“[Katy] and I have really been on good terms for a while,” Swift told the U.K.’s Capital Breakfast radio show about putting an end to their feud last year.

“She sent me a really nice note and an olive branch – like an actual olive branch – to my tour when it started, the Reputation Stadium Tour, a while ago,” Swift revealed. “From that point on, we’ve been on good terms.”

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The "Lover" hitmaker added during a 2019 interview on Capital Breakfast.

"Something felt so much lighter about my life when things became really good between us," Swift said. "And, you know, she and I have been fine for a while and, like, really on good terms but we didn't know if we were ever really gonna tell people about it. We wanted to make sure that was solid between us before we ever made, you know, the public aware."