Taylor Swift and Katy Perry are currently having a girl fight with each calling the other fake or phony. Here's some more info:

Katy has had many talks with and heard stories from John Mayer about Taylor and she’s convinced [Taylor Swift] is a conniving bitch, who is only out to benefit herself. Katy dislikes fake people and she thinks that Taylor is the queen of fake people. Katy can read through all of Taylor’s bullshit. — so says an unnamed source.

Taylor apparently made a diss track of Katy.

How much farther will this cat fight go?