Chris Brown's attorney says the R&B singer has completed nearly 300 hours of community service since being sentenced for beating Rihanna.

Brown appeared in a Los Angeles courtroom on Thursday morning to offer a judge an update on his community service and domestic violence counselling. Attorney Mark Geragos says Brown is expected to complete his counselling in October.

He's completed roughly 20 per cent of the community labour work he's required to perform.

Brown was sentenced last year to five years of probation and six months of community labour for the February 2009 attack on his ex-girlfriend.

The 21-year-old singer is due back in court on August 26 for another update, and a judge has requested a formal probation report on his progress.