Chris Brown has been commended by a US judge for his community service work.

The R&B star was given five years probation and six months community labour after pleading guilty to assaulting former girlfriend Rihanna in February 2009.

Brown’s community service has included cleaning roads and removing graffiti, reports BBC News.

"Out of thousands of probationers, no one has done a better or more consistent job than you have," Judge Patricia Schnegg told Brown.

"I really want to commend you for taking responsibility and for actually working diligently to complete all the things the court has required of you."

As part of his sentence, Brown was also told to attend domestic counselling classes, which he has almost completed.

(by Jason Gregory)