According to RadarOnline.com, both singers have been using the same concert tour director and production designer, Baz Halpin, for years. "Baz did Taylor's most recent Red tour and the Speak Now tour, and he did California Dreamz and the current Prism tour for Katy," a source told them.
Now that Katy got hired for the gig, she's asked him to direct her Super Bowl halftime show. "He's working out the money details right now, but it's obviously a huge career highlight for him and he wouldn't pass up the chance to do it," the insider said.
Taylor's not too happy with Baz getting the job, and helping Katy out. "She got word of Baz agreeing to do the show for Katy and Taylor's flat out said she will not hire him ever again for any performance or tour if he goes ahead with his decision."
The insider says that the director would "be nuts not do the gig" and there's no way he'll pass it up. "Katy got word of Taylor's 'ultimatum' and found it quite amusing."
All of this comes after Taylor revealed that a song called "Bad Blood" on her new album is about Katy being mean to her. You can't really blame her for acting this way IF that's all true...
Whose side are you on? If you were Baz, would you design Katy's show? Do you think Taylor's being immature? Chime in.