(Reuters) -Sean "Diddy" Combs' ex-girlfriend Casandra Ventura, a rhythm and blues singer known as "Cassie," is expected to testify on Tuesday as the prosecution's star witness in the hip-hop mogul's sex trafficking case, a day after jurors saw a video of Combs hitting and kicking her in a hotel in 2016.

Sean "Diddy" Combs is charged with sex trafficking, racketeering and transportation to engage in prostitution. He has pleaded not guilty

The music mogul’s former girlfriend accused him of years of abuse in a bombshell 2023 lawsuit. Now she’s taking the stand at his federal trial.