A close look at the case against hip hop mogul Sean “Diddy” Combs, for sex trafficking and racketeering conspiracy, underway in a Manhattan court.

Kid Cudi is the latest celebrity being called to testify at Sean “Diddy” Combs ′ sex trafficking trial in New York. The popular melodic rapper is expected to take the stand Thursday and tell the jury about his brief relationship 14 years ago with Combs’ ex-girlfriend, the R&B singer Cassie.

Cassie Ventura and Sean "Diddy" Combs' former assistant testified that he tried to confront Marion "Suge" Knight at a diner. The pair have been rivals since the '90s.

Regina Ventura, the mother of Combs' ex-girlfriend Cassie Ventura Fine, told the court on May 20 she was "physically sick" over the rapper's alleged abuse and said she was once pressured to send him $20,000 after he raged at her daughter. "I was scared for my daughter’s safety," Ventura told jurors.

Sean ‘Diddy’ Combs is on trial in New York for sex trafficking, racketeering conspiracy, and transportation to engage in prostitution. His ex, Cassie Ventura, took the stand during the first week, with her mom testifying against the rapper during week two of the trial.

Sean “Diddy” Combs’s federal sex-trafficking trial continued on Day 8, with Special Agent Gerard Gannon, psychologist Dawn Hughes and ex-employee George Kaplan testifying.

A handful of witnesses took the stand in Sean Combs' sex-crimes trial, including a psychologist, a federal agent and a former aide.

Prosecutors showed the jury photos taken during the raid on Sean “Diddy” Combs’ Miami home last year as a Department of Homeland Security agent took the witness stand.