Chris Brown pleaded guilty on Tuesday to hitting a man outside a Washington hotel, an assault that occurred while the singer was on probation for attacking his then-girlfriend Rihanna. Brown pleaded guilty to misdemeanor assault and was sentenced to time served. He spent two days in a District of Columbia jail in this case. The Grammy-winning singer was arrested in October. The victim told police Brown hit him after he tried to get in a picture the singer was taking with two women. Brown had previously pleaded not guilty in the case. His trial had been set for April, but it was delayed.