Last month, a judge decided that the singer would be legally obligated to deliver six more albums before she could leave her record deal with a division of Sony Records owned by Dr Luke, who she has accused of repeated sexual and emotional abuse.
It has now been reported that she is fighting against the decision, and has filed a motion to overturn the ruling in Manhattan.
Court documents obtained by The Hollywood Reporter compare her current deal to “slavery”, with the appeal reading: “First, the Court erred in basing its decision on its finding that Kesha could record without interference from [Dr Luke].
“Although it recognised that "slavery was done away with a long time ago" and that 'you can't force someone to work in a situation in which they don't want to work,' the Court's ruling requiring Kesha to work for [his] companies, purportedly without his involvement, does just that.
Lawyers for Dr Luke - who has repeatedly denied all accusations of sexual abuse levelled against him by Kesha - have already responded to the appeal.
“The court repeatedly stated Kesha was already free to record without Dr Luke, and that she had not presented any facts supporting her claims," they said.
"That’s because all the evidence – including Kesha’s own sworn testimony – show her allegations are false.
"Her attorneys can continue manufacturing even more false and outrageous claims, but the fact remains that her time would be better spent in a studio than wasting time having her lawyer and mother spin lies in the media."
Since the ruling was made in February, a number of Kesha’s contemporaries have come out in support of her, including Adele, Taylor Swift and Lady Gaga, who has backed the ‘TiK ToK’ singer on a number of occasions.