Are Katy Perry and Taylor Swift distant cousins?

The "Smile" singer learned that she and the "You Need To Calm Down Singer" are related during an interview with Capital FM's morning show with Roman Kemp on Friday (July 10).

"Well, we fight like cousins," Perry admitted jokingly, before initially calling the news "fanfic."

"Someone has literally written, like, a full thing," one of the radio hosts explained, referencing a new MyHeritage.com chart that reveals the artists' surprising familial connection. Researchers at MyHeritage.com created a chart that shows that the two pop superstars are ninth cousins.

"Wow, I'm going to have to ask her if this is true or if we should, like, get blood tests together or something," Perry replied, appearing a little shocked by the apparent revelation.

Watch the moment, below.

"The familial connection was worked on and confirmed by researchers at MyHeritage using technology from Geni, our sister company," the Director of PR and Social Media for MyHeritage.com confirmed to PopCrush. "During the process our researchers harnessed the power of millions of trees that have been built by users around the world. We only recently launched a page which shows how many famous people are connected so it's great to see that people are enjoying them."

It's no secret that Perry and Swift have history together. At the start of Swift's career, the two were friends until a disagreement happened over touring backup dancers. The feud lasted for years until Perry extended a literal olive branch to Swift in 2018.

The two have been on great terms ever since and Perry even appeared in Swift's "You Need to Calm Down" music video, dressed as a hamburger while Swift donned a French fries costume.