A recent interview with Taylor Swift in Rolling Stone magazine revealed that the country star turned pop singer has been having problems with a certain fellow artist. Apparently, the artist in question comes up to her during awards shows and exhibits unruly behavior.

According to Swift, the first time it happened, she was left perplexed and was not sure what to make of it, but the second incident apparently made it clearer that they were enemies.

After the incident, the unnamed artist allegedly went into great lengths to try to sabotage an entire arena tour of Swift's, where she (the supposed hostile artist) tried to hire people belonging to Swift's crew who were needed for the said tour.

Although Swift hadn't named the artist in question, a recent early morning tweet from the "Dark Horse" singer Katy Perry which made a reference to Rachel McAdams' character in the movie 'Mean Girls' named Regina George, has made her a subject of suspicion.

Perry seemingly warned her Twitter followers of a certain Regina George who's in "sheep's clothing," which many took as an indication that the "Roar" singer was the artist at war with Swift.

Swift said in the Rolling Stone interview that the unnamed fellow artist broke her heart because she has always wanted 'girls sticking' together.

According to Swift, she tries to avoid conflicts at all costs as she loathes them, but since the situation now calls for it, she has to avoid the supposed 'hostile artist'; putting her in an awkward position in the process - which the singer said she's not comfortable with.

Swift clarified that the hostility she had felt from her unnamed fellow artist did not stem from a fight over a boy.

However, fans recall that both Swift and Perry once dated fellow singer, John Mayer.