In a 2000 civil lawsuit, Jay-Z was accused of raping a 13-year-old girl with Sean “Diddy” Combs: he called it extortion

The entertainer said the suit, which accuses him of assaulting an unnamed 13-year-old girl in 2000, was an effort to gain settlement money by putting forward “idiotic” claims.

Jay-Z was accused of raping a 13-year-old girl with Sean Combs in a lawsuit filed Sunday by an unnamed plaintiff. He vehemently denied the allegation and accused the lawyer who brought the suit of trying to blackmail him with false claims.

The allegations against the billionaire rapper and hip-hop mogul came as part of the flurry of litigation against Mr. Combs, who is facing federal sex trafficking and racketeering charges and at least 30 lawsuits accusing him of sexual misconduct. One of those lawsuits, filed in October, accused Mr. Combs and an anonymous celebrity of raping the teen at an after-party following the MTV Video Music Awards in New York in 2000.

On Sunday, the plaintiff amended the lawsuit to name Jay-Z as the other celebrity, asserting in court papers that he and Mr. Combs took turns raping her after she arrived at the party and drank part of a drink that made her feel “woozy and lightheaded.” Jay-Z called the claims “idiotic” and said that he came from a world where “we protect children.” Mr. Combs has denied all allegations of sexual assault and misconduct and has pleaded not guilty to the criminal charges.

The lawsuit was filed by Tony Buzbee, a personal injury lawyer in Houston, who has filed at least 20 sex assault lawsuits against Mr. Combs and used a phone hotline, Instagram and a news conference to find clients.

In an extensive response, Jay-Z, 55, said he had received a demand letter from Mr. Buzbee appearing to seek a settlement but that the letter had the opposite effect: “It made me want to expose you for the fraud you are in a VERY public fashion. So no, I will not give you ONE RED PENNY!!,” the statement read.