AP PHOTO Musician Jay-Z stands on the field before an NFL football game between the Washington Commanders and Dallas Cowboys, on Nov. 24, in Landover, Md.

NEW YORK — Jay-Z says a rape allegation made against him is part of an extortion attempt.

A woman who previously sued Sean “Diddy” Combs, alleging she was raped at an awards show after-party in 2000 when she was 13, amended the lawsuit Sunday to include a new allegation that Jay-Z was also at the party and participated in the sexual assault.

The 24-time Grammy award winning rapper, producer and music mogul called the allegations “idiotic” and “heinous in nature” in a statement released by Roc Nation, one of his companies.

He also revealed that he had anonymously sued the woman’s lawyer, Tony Buzbee, last month, alleging he was trying to blackmail the rapper by threatening to make the rape allegation public if he didn’t agree to a legal settlement. He said Buzbee sent a letter to his lawyer appearing to seek a settlement, but that the letter had the “opposite effect” on him.

“It made me want to expose you for the fraud you are in a VERY public fashion,” Jay-Z’s statement read. “So no, I will not give you ONE RED PENNY!!”

The litigation is part of a wave of sexual assault lawsuits levied against Combs as the hip-hop mogul remains in custody in New York awaiting trial on federal sex trafficking charges.

The unnamed woman says she was hanging around Radio City Music Hall during the 2000 MTV Video Music Awards and managed to talk a limousine driver into bringing her to a celebrity-studded party at a private residence after the event.

She said that while she was in the limousine, she was asked to sign a nondisclosure document. Once at the party, the lawsuit said, she took a drink that made her feel “woozy and lightheaded” and went into a bedroom to lie down.

She said that Combs and Jay-Z, whose legal name is Shawn Carter, then barged into the room along with another unnamed celebrity and raped her. The woman said she eventually escaped the room, fled the house and called for a ride from a nearby gas station.

Buzbee, a personal injury lawyer in Houston, said the notion that he was trying to blackmail Jay-Z is “stupid and laughable,” and that his letter simply sought confidential mediation in the litigation.