Update

Rihanna Assisting Police

Police sources are saying that Rihanna, the R&B star who was allegedly in an altercation with her boyfriend Chris Brown, is providing "ongoing" cooperation with officials to build a domestic violence case against him. After an early morning altercation in Los Angeles, Rihanna was said to have bruises and a scratch on her face, according to the Los Angeles Times. Brown was arrested and released on $50,000 bail the night of the Grammys, where both performers were nominated and slated to perform.