The state’s got two new witnesses to testify against R. “Pissy” Kelly, and they’re expected to corroborate prosecutors’ claims about the identity of the girl who allegedly was videotaped having sex with the R&B star, sources said.

According to the Chicago Tribune, Cook County Circuit Judge Vincent Gaughan allowed prosecutors to add the two to their list of witnesses in advance of the May 9 trial.

Kelly, 40, was indicted in June 2002 on child pornography charges, accused of videotaping himself having sex with an underage girl. Prosecutors have said the girl may have been as young as 13 at the time.

The new witnesses likely will bolster the prosecution’s case, which has been challenged by the fact that the girl who allegedly was videotaped having sex with the R&B star has denied being in the video. In January, the judge rebuffed a bid by prosecutors to allow an expert to testify about the girl’s denial.

The judge called the last-minute request to add witnesses “extraordinary.” Although he approved the new witnesses, he said he didn’t want to push back the trial, noting that the case has come up on his docket 112 times.

Both sides will be back in court April 1 to discuss jury instructions.

Kelly, dressed in a dark brown suit and silver tie, appeared in court but did not speak. Most people in the court gallery appeared oblivious to Kelly, who sat in the front row of the court until his case was called.

Kelly has denied the charges. He faces as many as 15 years in prison if convicted.