Rihanna P Diddy's the latest star to speak out about the drama between Chris Brown and Rihanna.

He's been chatting about his decision to open up his Miami home to the two young stars, just weeks after Chris was accused of assault. 

Diddy says he defends his choice and that he had every right to let them stay at his home, even though it left a somewhat sour taste in some people's mouths.

"It was a dark time for them and I was there as more of a support," the music mogul said during an interview on the Ellen DeGeneres show. 

"I'm not immersed in (their situation). I'm not going to pass judgment on it. I'm going to be there as a friend."

When Ellen questioned the rap star over his decision, Diddy was clearly uncomfortable and defensive.

"It's my house, and I'm allowed to give my house to whoever I want to give my house to," he said.

"I don't cast a stone – cast judgment on anybody. So, if friends ask me for a favour, then I'm going to be there for a favour, as long as I know the energy of the favour is positive."

Diddy says he believes that the best thing for a couple to do is to sit down and chat about their problems.

"Two people sitting down and talking about a situation they're in. We don't know exactly what's going on. There are two young individuals [involved]. We need to pray for them."