NEW : Police : Brown turned himself in after woman accused him of attacking her . `` Take You Down . '' Had a no - show at Grammy Awards , where he was to perform Sunday . Brown , woman were in vehicle when alleged fight occurred , authorities say . Police have n't named woman ; Brown 's girlfriend , Rihanna , cancels performance .
NEW : Police : Brown turned himself in after woman accused him of attacking her . Had a no - show at Grammy Awards , where he was to perform Sunday . Brown , woman were in vehicle when alleged fight occurred , authorities say . Police have n't named woman ; Brown 's girlfriend , Rihanna , cancels performance .