Sean 'Diddy' Combs' trial is underway on Friday in Manhattan after his son King wore a shirt with a message of support for the rapper, breaking the court's rules.

The disgraced mogul's son, 27, was sporting t-shirt with the message ‘Free Combs’ on Thursday - even though court attendees are not allowed to have slogans such as this in court.

Diddy's ex-girlfriend and accuser 'Jane' concluded her motional testimony this week after telling the court she still loves the rapper, but resents that she felt forced to have sex with strangers to satisfy his sexual fantasies.

Prosecutors say they charged the rapper with sex trafficking and racketeering conspiracy because he used threats, drugs and violence to force women into unwelcome sexual experiences and used his employees and associates to help him get what he wanted.

Diddy has pleaded not guilty. If convicted, he faces 15 years to life in prison.