According to Ventura’s lawsuit, filed in federal court in Manhattan, she met Combs in 2005, when she was 19 and he was 37.
He signed her to his label, Bad Boy Records, with her hits including tracks like Me & U.
They also began a romantic relationship.
Court documents called Combs a violent man, recounting disturbing scenes of his outbursts, including forcing Ventura to engage in sex acts with male sex workers, which she alleges Combs filmed.
The complaint said that in 2018 Combs and Ventura had dinner, after which he forced his way into her apartment and raped her.
In an earlier statement to AFP, Combs’s lawyer Ben Brafman “vehemently” denied the allegations, calling them “offensive and outrageous”.
Combs accused Ventura of blackmail, saying her aim was to “tarnish” his reputation and gain a payout.