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Singer Chris Brown has told fans he is "proud" to have completed a series of domestic violence classes.

Writing on his Twitter the R&B star said: "I have enough self respect and decency to be proud of accomplishing this DV class."

Brown, 20, was given five years' probation and a community order after pleading guilty to assaulting ex-girlfriend Rihanna in June 2009.

He added he had learned from his "mistakes".

The singer posted a picture of a certificate which said he had completed a 52 week course.

In June 2010, the Â鶹ԼÅÄ Office denied Brown entry into the UK and he was forced to cancel a short UK tour.