R&B singer Cassie Ventura pocketed a whopping $20 million settlement in her bombshell 2023 lawsuit against Sean “Diddy” Combs — which opened the floodgates on claims against the hip-hop mogul, it was revealed in court Wednesday.

The previously unknown figure came out near the end of Ventura’s questioning by prosecutors in Manhattan federal court, as she was asked about the lawsuit that spurred criminal charges against the Bad Boy Records founder.

“Who paid you $20 million?” prosecutor Emily Johnson asked Ventura just before finishing up her direct examination of the star witness.

“Sean and his companies,” Ventura, 38, answered.

Ventura’s explosive civil case laid out similar claims to those she has testified to over the past two days at his criminal sex-trafficking and racketeering trial.

The mom of two — whose full name is Casandra Ventura — brought the lawsuit on Nov. 16, 2023, accusing the legendary music producer of raping and physically abusing her for over a decade.

Ventura had alleged that Combs, 55, regularly fed her drugs and alcohol, forced her to have sex with male prostitutes and viciously raped and beat her shortly after meeting her in 2005 until 2018. 

The “Me & U” singer also accused the music mogul of pressuring her into having frequent drugged-up rendezvous with male prostitutes as he filmed, directed and masturbated — an arrangement he called a “freak-off.”

She alleged Combs controlled every aspect of her life, including her money, health care and career — and threatened to blow up fellow musician Kid Cudi’s car upon finding out he had a brief tryst with Ventura when they were on the outs. 

When she finally found the courage in 2018 to leave Combs for good, she claimed he pushed her into her apartment and raped her one final time.

Ventura’s disturbing allegations ultimately prompted the feds to launch a probe into Combs.

Follow The Post’s live updates from Sean ‘Diddy’ Combs’ sex trafficking trial in NYC

She has since taken the witness stand at his high-profile trial, where she’s exposed the alleged gut-wrenching abuse she endured at the hands of the “I’ll Be Missing You” rapper during their volatile, 11-year, on-and-off relationship.

Her short-lived lawsuit against Combs was settled within a day — though the settlement amount was kept under wraps until her testimony Wednesday.

Combs, 55, has pleaded not guilty.

His lawyers have said his alleged victims actually took part in so-called “freak-off” sex marathons with male escorts willingly, and that while he may be guilty of domestic abuse in regards to Ventura, he was not a sex-trafficker.

Ventura is expected to be back on the stand Thursday, to be cross-examined by Combs’ defense team.