Chris Brown joined at court by girlfriend Karrueche Tran

Chris Brown has pleaded guilty to misdemeanor assault in Washington, where he was accused of punching a man who tried to join a picture the singer was taking with two women outside a hotel.

Brown, who was joined at court by girlfriend Karrueche Tran, was sentenced to time served on Tuesday. He had been in jail for two days in the case.

He had been arrested and charged with misdemeanor assault in October after the scuffle outside the W hotel.

The victim in the case says Brown hit him after he tried to get in a photograph Brown was taking with two women.

Brown had previously acknowledged to a judge in Los Angeles that he had violated probation by committing a crime in Washington.

He had been on probation for a 2009 attack on the singer Rihanna, his girlfriend at the time.

The singer's bodyguard Christopher Hollosy was also accused of hitting Parker, who claimed he was struck after trying to get in a photograph with the Yeah 3X hitmaker.

The singer was released from jail on June 2 after spending 108 days behind bars for violating his probation after he allegedly made threats about using guns while seeking anger-management treatment in rehab.

Last month, the star was praised by a judge for his good behaviour after appearing at a Los Angeles court for a progress report on his probation.