Any recovery obtained by the singer will be donated to organizations protecting women from sexual assault, according to the papers

Taylor Swift is proving she’s not one to be messed with.

On Wednesday, the singer filed a counter suit against David Mueller, a radio host who allegedly groped her during a meet-and-greet in 2013.

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In September, Mueller filed a suit against Swift claiming he was fired by his job and banned from the star’s concerts based on false allegations he groped Swift before her concert at the Pepsi Center in June of 2013.

According to the countersuit obtained by PEOPLE, Mueller – who was previously terminated twice from on-air radio jobs at other stations and hadn’t worked as an on-air personality since May 2006, according to the papers – admitted Swift was assaulted but blamed “his superior” at KYGO, Eddie Haskell.

“Ms. Swift knows exactly who committed the assault – it was Mueller – and she is not confused in the slightest about whether her long-term business acquaintance, Mr. Haskell, was the culprit,” the countersuit states. “Resolution of this Counterclaim will demonstrate that Mueller alone was the perpetrator of the humiliating and wrongful conduct targeted against Ms. Swift, and will serve as an example to other women who may resist publicly reliving similar outrageous and humiliating acts.”

The papers allege Mueller and his girlfriend were participating in a meet-and-greet with Swift, 25, when he “intentionally reached under her skirt, and groped with his hand an intimate part of her body in an inappropriate manner, against her will, and without her permission.”

“Mueller did not merely brush his hand against Ms. Swift while posing for the photograph,” state the papers. “He lifted her skirt and groped her.”

After the alleged incident, Swift was “surprised, upset, offended, and alarmed,” and informed her photographer, tour manager and security team, according to the papers.

According to the suit, Swift – who is demanding a jury trial – will be donating any money she wins from the suit to “charitable organizations dedicated to protecting women from similar acts of sexual assault and personal disregard.”