Despite having all the fame 
 
 Katy Perry — I Had To Get Therapy After John Mayer Break Up 
 
 The singer doesn’t hold back when talking about her break ups, in fact, she says that she couldn’t have gotten through all of it if it wasn’t for her “oracle” of a therapist. I don’t think there would be any personal problem if she weren’t competitive.” 
 
 Taylor and Mayer had a love affair in 2010 before he dumped her. So they signed up as dancers during Taylor's tour.We're told the dancers told Taylor up front ... they did not want to sign for the full tour -- they wanted a 30-day out, and we're told it's because they were just waiting for Katy to go back on tour.When Katy hit the stage again, they gave their 30-day notice, but Taylor got so pissed off she fired them on the spot.All of this went down a year ago but we're told Taylor held a grudge, which boiled over when she wrote a song -- "Bad Blood" -- alluding to Katy screwing her over.It's turned into a full on war, with Taylor not-so-coyly talking about the alleged betrayal -- and Katy responding on Twitter by calling Swift ... Regina George in sheep's clothing. Now Taylor feels as though it almost derailed her entire tour, which it ultimately didn’t.
– Most people would prefer the matter of their therapy sessions stay private, but most people aren't Katy Perry. In an interview with Harper's Bazaar, picked up by Hollywood Life, the 29-year-old singer says she only survived her breakup with John Mayer thanks to her "oracle" of a therapist. "What I've learned is that if you don't have the foundation of self-love first, you really have nowhere to pull love from to give it away," she tells the mag. "I want to mommy everyone. I want to take care of them. I want to save them, and I forget myself in the meantime. I learned that through therapy." In case you weren't aware, John Mayer is one thing Perry has in common with her apparent "straight-up enemy" Taylor Swift—in fact, the bad blood between the singers started because of him, Page Six reports. Despite Swift's account that the feud with a certain unnamed female singer was business-related—TMZ reports that three dancers once left Swift, who apparently considered them "family," to return to Perry when she started touring again—a source tells Page Six that "Perry started making digs at Taylor" after Swift released the song "Dear John" about her breakup with Mayer following a brief affair in 2010. And so explains the Mean Girls reference.