Taylor Swift and Katy Perry hate each other. On her album 1989, Taylor Swift calls out Katy Perry for stabbing her in the back, the scars from which she bears to this day. Will Katy Perry retaliate during her Super Bowl performance? Hollywood Life says yes.

Claims a Hollywood Life insider:

"Katy will be doing something on stage during her performance that will be directed towards Taylor. She is working on it to be a visual or a lyric related jab," our insider says.

Tearing a photo of Taylor Swift in half; changing her lyrics to, "'Cause I'm coming at you like a dark horse, Taylor Swift, because I dislike for professional reasons"; lighting New York City on fire: all possibilities for Perry's Super Bowl performance.

Finally, a reason to be excited for this year's halftime show.

[image via Getty]