A former collaborator has accused Talib Kweli Greene of sexual harassment, sparking an ongoing social media dispute and the revelation of an earlier breach of contract lawsuit between the two. Singer Res (full name Shareese Ballard), who’s appeared on Kweli’s albums and previously collaborated with him as the duo Idle Warship, was also signed to the rapper’s Javotti Media label as a solo artist. Res brought their disagreement to light with a series of Friday tweets, accusing Kweli of failing to release her album in retaliation for an incident where Kweli allegedly attempted to kiss her while on a work trip.

I signed to Javotti, to release an album not to fight a lawsuit over music that is waiting to be released ,which u refused to accept.

— RES (@the1res) May 31, 2018

I tried to be humble but you letting a kiss that you didn’t get @TalibKweli keep my career on hold and I dare you to say I’m not telling the truth you know Gmail https://t.co/02ohGszzCW wasn’t you married then I’ll wait

— RES (@the1res) June 1, 2018

We both have the email of you apologizing for making a pass at me @TalibKweli when we was on a trip to make music how is this in the contract why do I have to Kiss you to be out my contract

— RES (@the1res) June 1, 2018

Kweli responded by posting a page from a 2016 lawsuit between Javrotti Media and Res. (Pitchfork published the full public document.) In the suit, Javrotti alleges that Res “continually failed to show up for obligations” and did not turn in an album as required by her contract. As outlined in the suit, Res offered the song “You Don’t Know Me,” featuring a verse by Kweli, as a donor reward in an Indiegogo campaign she opened to raise money for her album. Javrotti then sued Res for breach of contract, claiming she did not have rights to the song and failed to respond to a cease and desist letter.

In her counterclaim, Res denies that she failed to honor obligations; on social media, she’s claimed Kweli refused to accept music she turned in. Her counterclaim further alleges that Kweli “made unwanted and unprovoked sexual advances” toward her “on at least two occasions,” causing her to “feel uncomfortable and demeaned,” though it doesn’t go into detail. Judge Carolyn E. Wade dismissed the majority of Res’s claims, including the claim of sexual harassment, noting “the elements are not sufficiently pled.”

Bottomline is that you create a very uncomfortable work environment from the groupies on the tour bus , to the affairs with our group member to the times you hit on me. Whether it was proven in court or not, you know what you did. You are trying to get money from me and its sad.

— RES (@the1res) June 2, 2018

Both Kweli and Res have responded to the situation on social media, each accusing the other of lying. “Res has not accepted this outcome so she is using smear tactics,” Kweli wrote on Instagram, along with the excerpt of Judge Wade’s ruling (below). “She is trying to use the #metoo movement to bully me into dropping my lawsuit… I fully and categorically deny any allegation of sexual harassment.”

The lawsuit document also includes the text of a settlement agreement, which would require Res to repay Javrotti Media $12,000, stop using “You Don’t Know Me,” and cease accusing Kweli of sexual harassment. The terms of the settlement also require that both parties keep the matter confidential and “not post anything negative on any form of social media.” The agreement is unsigned and doesn’t appear to have gone into effect.

Shareese Ballard Aka Res is a liar. She was dropped from my label Javotti Media in 2013 for disrespecting my employees and for failing to turn in an album I invested in. I am not holding her music because she never turned any music in. At all. Ever. In early 2014 Res started an indie Gogo campaign and sent a song featuring my vocals to fans without my permission as a reward. I asked her to stop using my verse, she refused. So I sued her. Res then countersued saying that I sexually harassed her. I find her claim to be dubious in nature. Bogus. Over a year ago, the judge in the case Carolyn E. Wade dismissed Res’ 3 claims against me, including the sexual harassment claim. NYSCEF doc number 37. Res has not accepted this outcome so she is using smear tactics. Recently, she fired her lawyer in the other case, the one where she profited off of my music without my permission. So now she is trying to use the #metoo movement to bully me into dropping my lawsuit against her. I fully and categorically deny any allegation of sexual harassment.

A post shared by Talib Kweli (@talibkweli) on Jun 3, 2018 at 7:37am PDT

This article originally appeared on Spin.