Kesha’s music career has been intertwined with Dr. Luke’s, but now the pop star is levying some serious accusations against the superproducer born Lukasz Gottwald. She’s suing Gottwald over 10 years of alleged sexual, physical, verbal, and emotional abuse that allegedly left her on the verge of death. Here’s an excerpt from TMZ’s report:

According to a new lawsuit — obtained by TMZ — Kesha claims Dr. Luke was abusive towards her almost from the get-go — when she signed on with him at 18 — and made repeated sexual advances toward her. She claims he would force her to use drugs and alcohol to remove her defenses.

In one instance, Kesha claims he forced her to snort something before getting on a plane … and during the trip he forced himself on her while she was drugged.

On another occasion, Kesha claims after forcing her to drink with him, Dr. Luke gave her what he called “sober pills.” Kesha claims she woke up the following afternoon, naked in Dr. Luke’s bed, sore, sick … and with no memory of how she got there.

The suit also blames Kesha’s much-publicized eating disorder on Gottwald telling her she’s not pretty and calling her “a fat fucking refrigerator.” There are also reports of Kesha running barefoot into the mountains after Gottwald attacked her. It’s gruesome stuff, but feel free to further explore it at TMZ.

UPDATE: As Wondering Sound points out, Gottwald is now countersuing Kesha for extortion. His lawyer alleges that Kesha’s lawsuit is false and is the consummation of a longstanding threat to smear his name if he wouldn’t let her out of her contract. More details from TMZ:

But in Luke’s lawsuit … he says the pack of lies is being engineered by Kesha’s mother, Pebe, and Kesha’s new management firm. Luke claims Kesha tried to extort him by threatening to spread lies about him to a blogger who started a “Free Kesha” website unless he released her from her recording contract.

And Luke says in his lawsuit he’s had a copy of a draft of Kesha’s new abuse lawsuit for months, and she was threatening to file it if he didn’t release her. In other words, he’s alleging more extortion.

[Photo by Kevin Winter/Getty Images.]