Kesha was "under immense pressure to starve" herself when she worked with Dr. Luke

She said: "I was under immense pressure to starve myself. And I tried to and almost killed myself in the process."

And the 29-year-old singer says she started to fall out with Dr. Luke when he told her to sing lyrics she deemed to be offensive.

She added to the New York Times newspaper: "Lyrics that would say, 'Get that heifer out my face. I’m going to pull your ponytail back because you don’t know me, bitch, you phony trick.'

"I was like, 'O.K., not going to sing that. I will not sing those words. Like, no.' And then there was this argument about it."

Meanwhile, Kesha is working hard on new music, which will be released "soon".

Sony said in a statement: "Creating a new album takes time, and everyone's goal is to deliver a high quality album consistent with Kesha's past releases. We hope to share exciting new music with Kesha's fans soon."

However, Kesha's lawyer Daniel Petrocelli was less optimistic, adding: "Kesha has been trying for six months to record and release new music. Only in the last month, after our last court hearing, has any progress been made, but it is hardly enough. Kesha still has received no commitments on promotion, songs, or even a release date. We hope things turn around fast. Meanwhile, Kesha intends to continue participating in the creative process in the hopes she can meaningfully return to work."

Kesha previously filed legal documents against Dr Luke, seeking to have her contract with him dissolved. She has also accused him of sexually, physically, verbally and emotionally abusing her. Luke also filed a counter-suit against the singer, accusing her of defamation.