R. Kelly was convicted of racketeering and trafficking in his sexual assault trial in Brooklyn, New York.
The R&B singer was accused of exploiting his fame to attract underage women and girls for sex.
The 54-year-old woman had pleaded not guilty to racketeering and eight counts of violating a federal law that makes it illegal to transport people across state lines for prostitution.
A jury of seven men and five women found Kelly guilty on all counts after their second day of deliberations.
Witnesses said Kelly subjected them to wicked and sadistic whims as minors, believing that “music, fame and celebrity meant she could do whatever she wanted.” Assistant United States Attorney Nadia Shihata said.
He added that his alleged victims “are not groupies or gold diggers, they are human beings.”
Prosecutors argued that his entourage of managers and staff who helped Kelly meet girls and keep them under control amounted to a criminal enterprise.
Despite the abuse, the singer continued to tour and make music, even after it emerged that he had married R&B star Aliyah when she was just 15 years old.
The court heard that he had ordered a former manager to falsify documents for the marriage to take place.
Gloria Allred, an attorney for some of the victims, said: “I have practiced law for 47 years. During this time, I have persecuted many sexual predators who have committed crimes against women and children. Of all the predators I have persecuted however, Kelly is the worst for many reasons. “
Speaking outside the courtroom, Deveraux Cannick, an attorney for Kelly, said the defense was “disappointed.”
Kelly, whose full name is Robert Sylvester Kelly, will be sentenced on May 4, 2022.
He is one of the most prominent people tried on charges of sexual abuse during the #MeToo movement following the allegations that had been following him since the early 2000s.