Sean 'Diddy' Combs' attorneys are expected to conclude their cross-examination of his ex-girlfriend and main accuser Cassie Ventura on Friday.

As the trial against the mogul entered its fifth day, Justin Bieber's camp finally addressed explosive rumors connecting him, insisting the former child star was not among his alleged victims.

The music mogul, 55, has kept a poker face this week as a pregnant Cassie described being physically and emotionally abused throughout their 10-year relationship.

Combs' defense says he is guilty of domestic violence - which he is not charged with - but not of sex-trafficking or racketeering, and that the government is targeting him for his sexual preferences.

On Thursday his lawyers portrayed Cassie as a willing participant in his sexual lifestyle and say that, while he could be violent, nothing he did amounted to a criminal enterprise. Combs denies all the allegations and has pleaded not guilty to federal sex trafficking and racketeering charge