American R&B singer Chris Brown has been clearing police horse stables in the USA as part of his 180-day community service for assaulting his chart topping ex-girlfriend Rihanna.

The 20-year-old worked with two others clearing weeds and debris from the stables in Virginia yesterday.

He reportedly waved to fans and TV crews as he worked.

Mr Brown will serve several different types of manual labour as part of his service.

He was sentenced in August to five years’ probation, six months’ community labour and a year of domestic violence counselling for attacking the “Umbrella” singer Rihanna in February.