Dr. Luke sues over tweets alleging assault of Gaga: '#namethepervert'

Dr. Luke sues Kesha lawyer Mark Geragos for defamation over Tweet implying producer had attacked Lady Gaga

The saga involving pop singer Kesha and record producer Dr. Luke took a new turn Monday as Luke filed a lawsuit against Kesha's lawyer, Mark Geragos.

Geragos is representing the singer in a civil lawsuit against Luke that seeks damages for alleged sexual assault, battery, sexual harassment, gender violence and emotional distress. 

On Monday, Luke filed suit against Geragos for defamation, alleging the lawyer took to his Twitter account to accuse the music producer of sexually assaulting Lady Gaga when she was 19.

Gaga revealed the assault last week on Howard Stern's radio show -- without naming the person who assaulted her, just that he was two decades her senior.

A series of tweets were then posted on Geragos' Twitter account asking readers to "guess" the rapist and including the hashtag "#namethepervert," according to Luke's lawsuit.

Geragos' account eventually responded to a person posting Dr. Luke's name with #bingo, the suit said.

Singer Kesha's lawsuit against Lukasz Sebastian Gottwald -- also known as Dr. Luke  -- alleges a decade's worth of sexual, physical and emotional abuse and seeks to end their contractual relationship.

The music producer has counter-sued Kesha, saying the lawsuit was an attempt by the singer to force him into releasing her from her contract.

Now there's another lawsuit.

According to this suit, Geragos reasserted his allegation against Luke to celebrity news outlet TMZ. He has an "insatiable desire for attention," said Luke's attorney, Christine Lepera.  

Lady Gaga has specifically said that Luke was not the man who assaulted her, according to the litigation. 

Luke's attorneys in the suit filed Monday said he'd met Gaga briefly on only two occasions and was never alone with her at the time the alleged assault occurred. 

Geragos did not respond immediately to messages for comment.

His client Kesha alleges that not long after she moved to Los Angeles, Luke began to abuse her violently and forced her to consume drugs and  alcohol.

The civil suit filed in Los Angeles County Superior Court seeks to end Kesha's contract with Luke and damages for sexual assault, battery, sexual harassment, gender violence and emotional distress.

The lawsuit states that, in one incident, Luke forced Kesha to snort an illicit drug before getting on a plane. Once aboard, the producer “forced himself" on Kesha while she was drugged, the lawsuit claims.

Kesha, whose full name is Kesha Sebert, alleges that on another occasion the producer forced her to drink with him and then gave her what he called "sober pills." The following afternoon, she woke up naked in Luke's bed, "sore and sick and with no memory of how she got there,” the lawsuit claims, adding that she called her mother to report the incident.

The suit alleges she later learned the pills were a form of GHB, commonly known as the date rape drug, and that she had been raped.

In a statement to the Los Angeles Times, Lepera said Kesha and her mother were engaged in "a campaign of publishing outrageous and untrue statements" about her client in an attempt to extort her client into releasing the singer from her exclusive recording agreement.

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