R&B star R. Kelly is under police investigation in Chicago for allegedly having sex with an underage girl and videotaping the illegal act. The Chicago Sun-Times today (Feb. 8) reports that the pap

R&B star R. Kelly is under police investigation in Chicago for allegedly having sex with an underage girl and videotaping the illegal act. The Chicago Sun-Times today (Feb. 8) reports that the paper anonymously received a 26-minute, 39-second videotape that shows Kelly performing various sex acts with the underage girl.

The publicly unnamed girl, who is now 17-years-old, was identified by a family member who estimated she was 14 at the time the tape was made. Chicago police have been investigating the allegations for as long as three years, according to the paper. Because the girl and her parents have in the past denied her involvement, there was no evidence on which to prosecute Kelly. But authorities tell the paper that the tape makes building a case more possible.

Kelly's attorney, John M. Touhy, claimed the video is not real. "Any tape you have is a fake, and we find the timing of these events to be extremely suspicious," he told the paper.

In 1998, Kelly, who was briefly married to late R&B star Aaliyah in 1994 when she was just 15-years-old, settled a lawsuit with a woman who claimed he had sex with her when she was 15, and convinced her to drop out of school, according to the Sun-Times article. The artist is also fighting a suit brought by another woman who claims she was involved in an illicit relationship with him when she was underage.

As previously reported, Kelly will be among the performers taking part in tonight's opening ceremonies of the Olympic Winter Games in Salt Lake City. His collaborative album with rapper Jay-Z, "The Best of Both Worlds," is due March 26 via Def Jam.