Rihanna is opening up about Chris Brown... again. This time it's to Oprah in an interview that will air this Sunday on the OWN network.

"I lost my best friend," she says, while tearing up. "Everything I knew switched ... switched in a night and I couldn't control that. It was a weird, confusing space to be in ... because as angry as I was, as angry and hurt and betrayed, I just felt like he made that mistake because he needed help, and who's going to help him? Nobody's going to say he needs help. Everybody's going to say he's a monster without looking at the source. And I was more concerned about him."

[via Perez Hilton]