Taylor Swift filed a countersuit on Wednesday against the former radio personality who allegedly groped her.

In legal papers filed at the District Court of Colorado, the "Bad Blood" singer asserts that while at a meet-and-greet at Denver's Pepsi Center in June 2013, David Mueller reached under her skirt and grabbed her butt.

The incident left Swift "surprised, upset, offended, and alarmed," according to legal documents obtained by TheWrap.

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Mueller, who was a radio personality at the time, attended the meet-and-greet with his girlfriend Shannon Melcher. He has already denied the allegations and filed a lawsuit against Swift in U.S. District Court in Denver last month, claiming he was fired from his job at KYGO-FM over the scandal. He also said that Swift's security detail "verbally harassed" him as he was "escorted to an exit door."

Despite claims by Mueller that it was actually KYGO program director Eddie Haskell who did the butt-grabbing, the Grammy-winning singer's countersuit states: "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.

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"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," it continued.

"Defendants admit that Mr. Bell showed Mr. Haskell a photograph of Mueller with his hand in an inappropriate place and a grin on his face," the papers also said, referring to Frank Bell, Director of Radio & Research at 13 Management, who is named as a co-defendant in the filing.

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Mueller's lawsuit aimed to recoup his lost income, which included "annual base salary was $150,000, with the potential for significant additional compensation in bonuses."

Swift, however, is demanding a jury trial and for any money she wins from the lawsuit to be donated to "charitable organizations dedicated to protecting women from similar acts of sexual assault and personal disregard."