Leland Wayne, the Grammy-winning rapper and producer known as Metro Boomin, has been sued for sexual battery by a woman who alleges he raped her at a California recording studio in 2016.

Lawrence Hinkle, a lawyer for Wayne, denied the allegations, calling the lawsuit a “pure shakedown,” and said his client will countersue. He added, “Mr. Wayne refused to pay her months ago, and he refuses to pay her now.

Vanessa LeMaistre, in a lawsuit filed in Los Angeles Superior Court on Tuesday, says she met Wayne in 2016 in Las Vegas. A friend introduced her to the producer, who extended an invititation to visit him in California.

When she arrived at the studio, LeMaistre was given an alcoholic drink, the filing says. She also ingested medication for anxiety, which she had been taking since her son died earlier in the year.

LeMaistre claims she lost consciousness while sitting on a couch watching him record.