An amended lawsuit filed in federal court alleges that rap mogul Jay-Z raped a 13-year-old girl along with Sean “Diddy” Combs during a party in 2000. Jay-Z denied the allegations on social media and blasted the lawsuit, calling it part of a “blackmail attempt” by the plaintiff’s lawyer. Lawyers for Jay-Z did not immediately respond to a request for comment.

The lawsuit was originally filed in October in the Southern District of New York and at that time did not name Jay-Z as a defendant, though the amended lawsuit says that Jay-Z was identified as “Celebrity A” on the original complaint. Combs has denied all allegations against him, including this one, in October. He is currently in jail on federal sex trafficking charges, to which he has pleaded not guilty. The lawsuit alleges that the unnamed girl was drugged and raped by both Jay-Z and Combs at a party hosted by Combs following the MTV Music Awards in 2000, which was held in New York.