There's definitely some bad blood here!

Taylor Swift's lawyers just filed a countersuit against the Denver radio host who was fired from his job after groping the singer's butt during a meet and greet backstage at the Pepsi Center. David Mueller filed a wrongful termination suit against the songstress when he was let go after the incident, and maintains that although the inappropriate contact took place, it was actually his colleague who was responsible.

"Mueller's newfound claim that he is the 'wrong guy' and, therefore, his termination from KYGO was unjustified, is specious. Ms. Swift knows exactly who committed the assault. It was Mueller," her lawyers wrote in the counterclaim via the AP.

Mueller claims his co-worker approached him backstage and demonstrated how he had grabbed the singer's buttocks while posing for a photo with her, so his termination from country station KYGO two days later was unjust. If T-Swizzle wins the suit, she plans to donate the money to charities "dedicated to protecting women from similar acts of sexual assault and personal disregard."