Katy Perry And Taylor Swift’s Bad Blood: ‘Wildest Dreams’ Singer ‘Obsessed’ With Feud

Taylor Swift is allegedly "obsessed" with outdoing her longtime rival Katy Perry in musical success. 

The "Wildest Dreams" singer is attempting to get more No. 1 hits than Perry with her recently-released "1989" album. 

"She wants seven No. 1s," an industry source told Fox News, adding, "Katy tied Michael [Jackson]'s record for having five No. 1s from a single album, and Taylor wants to beat Katy. She wants to be the greatest."

Earlier this month, Melissa Rivers reignited the ongoing feud between Katy Perry and Taylor Swift. 

The veteran actress and television host made a comment during a recent episode of "Fashion Police" directed at the two artists. She made a reference to Swift, asking "What kind of dreams does she have left? Katy Perry's head in a box?"

Last month, Perry was reported to be working on a new single with ex-boyfriend Diplo entitled "Crocodile Tears" that serves as a diss song against Swift.

New information suggests, however, that the "Bad Blood" singer isn't concerned about the new song.

"Taylor isn't worried about Katy's diss song about her at all," a source told Hollywood Life.

"If anything, she thinks it will help her out because it'll draw more sales for her own single 'Bad Blood.'"

Katy Perry is 30 years old and Taylor Swift is 25 years old.