NEW : Brown vented in Twitter messages posted online to his fans late Monday : . Publicist says shows cancelled over `` work visa '' issues . English officials say singer could pose a danger to Birmingham citizens . He pleaded guilty next Tuesday to felony assault on his then-girlfriend , Chris Brown . Singer vents in Twitter messages ; three post says `` think ima go away ! ! ! ! ''
NEW : Publicist says shows cancelled over `` work visa '' issues . English officials say singer could pose a danger to Birmingham citizens . He pleaded guilty next Tuesday to felony assault on his then-girlfriend , Chris Brown . Singer vents in Twitter messages ; three post says `` think ima go away ! ! ! ! ''