The 27-year-old star, who filed a lawsuit against her longtime music producer this week, claiming he sexually, physically, verbally and emotionally abused her for 10 years, has no plans to back down despite the fact he has filed a countersuit.
The 'Warrior' hitmaker's lawyer MARK GERAGOS told PEOPLE.com: ''We are prepared to fight until he agrees to get out of her life once and for all.''
The blonde beauty, who sought treatment in rehab for an eating disorder in January, tried to resolve her issues with him privately before she decided to take their battle to court to ask a judge to dissolve their contract.
Mr. Geragos said: ''She's made efforts, [but] she is not a confrontational person. The efforts were always met with psychological warfare, [predatory behavior] and things of that ilk. She finally got to a place where she is surrounded by people that are supportive enough that she felt like she could finally do it, and felt like she needed to do it. She just couldn't go on this way. Getting out of the contract is really secondary to extricating herself from his control.''
He added: ''I have spent quite a bit of time with her recently and I would say her mindset is as good as I have seen it. Obviously nobody wants to get embroiled in litigation and making things public like this, but she understands she has to take a stand. I applaud her bravery for speaking to a broader societal issue of domestic violence.
''This speaks to an untold story in this industry and society at large.''
Dr. Luke - real name Lukasz Gottwald - has denied all of Kesha's allegations, and is suing her for breach of contract and defamation.
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