The Katy Perry-Taylor Swift feud is undoubtedly the feud of our century; the two just can’t stop throwing jabs at each other. First, there was some bad subtweeting about stealing a backup dancer (Winner: Swift). Then, that whole John Mayer episode (Winner: Neither). Some more subtweeting with Mean Girl references (Winner: Perry). And finally Swift’s most meaningful victory of the feud: the “Bad Blood” video, a not-so-subtle knock at Perry.

But Perry isn’t one to go down without a fight (or “Roar” if you will). According music publishing site BMI, Katy Perry has registered a song titled 1984. Us Weekly speculates that the song is a “response to Swift’s hit track ‘Bad Blood’ off her fifth studio album 1989.” Needless to say Swifties are flipping out online, declaring Perry’s decision epic shade.

Your move, Swift.

Image via Getty.