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Katy Perry, Taylor Swift

Kevin Mazur/WireImage

Another day, another turn in the ongoing feud between Taylor Swift and Katy Perry.

It all began when Perry allegedly hired out all of T.Swift's dancers in the middle of her tour, and it has been escalating ever since. Rumor has it Swift's hit, "Bad Blood," is about Perry, while the "I Kissed a Girl" singer has thrown Calvin Harris' girlfriend some shade via Twitter.

"Watch out for the Regina George in sheep's clothing..." the singer tweeted last fall.

Since then, the feud has only gotten worse, with both singers refusing to outright name each other in their subtle jabs but making it equally as obvious that they're directly referring to the other. Finally, Perry has made it very clear that she harbors no warmth toward the "Style" crooner.

Perry was caught earlier this week following Instagram account "Slutty Taylor Swift." Someone named Dinah owns the account, and the page is filled with random selfies and other pictures that have nothing to do with T.Swift. Perhaps Perry is just following the account because of the profile name, or maybe she's friends with Dinah.

Taylor Swift

Michael Loccisano/Getty Images for TAS

E! News has reached out to a rep for Perry for comment.

Although it's unclear why she's following this random account, it's very obvious that this pop star feud won't go away anytime soon, especially since Perry involved herself in the Nicki Minaj-Swift kerfuffle and because Swift brought a shark onstage during one of her performances.

"Finding it ironic to parade the pit women against other women argument about as one unmeasurably capitalizes on the take down of a woman..." Perry wrote on July 22, when Minaj and Swift were battling it out over VMA nominations.

Perry has yet to unfollow the account, so we'll just have to wait and see if Swift responds to the latest move. Even though Swift announced the next single off of 1989, we have a feeling "Bad Blood" will always be on Swifties' minds.