Sean 'Diddy' Combs's trial is underway in New York City as the disgraced mogul faces charges of sex-trafficking and racketeering.

The music producer, 55, has sat by his team of star lawyers as he is accused of leveraging his wealth and power to oversee a criminal enterprise built around fulfilling his sexual fantasies.

Rapper Kid Cudi took the stand on Thursday and testified that Combs broke into his Hollywood Hills home in 2011 after finding out he was dating Cassie, and that someone set fire to his car weeks later.

Before that, George Kaplan, Combs’ one-time personal assistant, testified Wednesday that he was in charge of cleaning up hotel rooms after the hip-hop mogul’s sex marathons — tossing out empty alcohol bottles, baby oil and drugs, tidying pillows and making it look as if nothing had happened.

Diddy denies all allegations against him. His lawyers admit he's a woman beater - although he does not face domestic abuse charges - but that he is not guilty of sex trafficking or racketeering.