Chris Brown is really trying to complete his community service hours ASAP. 

TMZ reported that, in an attempt to work off his court-mandated 1,000 community service hours, Brown has been working 30-hour weeks since mid-November (six hours a day for five days). The state-sponsored exercise to turn the singer into a functioning human being requires him to do any work of a porter or janitor at an undisclosed location approved by the Probation Department. Those places are typically schools, government buildings, or community center. His taks mostly consist of doing physical labor such as taking out trash, painting walls, cleaning, moving furniture, etc.

Brown's community service apparently hasn't interrupted his career too thoroughly–this past weekend the singer performed in Jacksonville, Columbia, SC, and Birmingham on consecutive nights. 
The community service stems from the 2009 assault case involving Rihanna.