Earlier this year, subtle digs between Katy Perry and Taylor Swift took shape indirectly through social media.
But now, an all out storm is brewing, and their colleagues are being caught in the middle.
Apparently Katy and Tay Tay have been using the same concert tour director for years – a guy called Baz Halpin – and now that Katy has scored the high-profile Super Bowl half-time gig for 2015, she’s asked Baz to design it.
But Taylor isn’t happy that he’s agreed to it.
Sources say she’s “flat out said she will not hire him ever again for any performance or tour if he goes ahead with his decision.”
Putting poor Baz between a rock and a hard place…
So what will he decide?!