In an emotional testimony, the singer said she was forced to participate in her former partner's "freak-offs".

Follow The Post’s live updates from the sex-trafficking trial of Sean “Diddy” Combs in Manhattan as his ex, R&B singer Cassie, testifies as the prosecution’s star witness.

The rapper-producer and entertainment mogul Sean “Diddy” Combs is facing sex trafficking and racketeering charges that could ...