Chris Brown forced to scrap UK tour after Home Office bans singer over Rihanna attack

US R&B singer Chris Brown has been forced to scrap his British tour after he was refused a visa for attacking ex girlfriend Rihanna.
The Home Office said Brown was banned because he had been found guilty of a serious criminal offence.
The tour was due to have started in Glasgow today, followed by gigs in Birmingham, Manchester and London.
Tour promoter SJM said on its website that the concerts had been cancelled "due to unforeseen circumstances".
Fans were advised to hold on to their tickets with the possibility of the dates being re-arranged.
Brown, 21, attacked Rihanna in his car after a pre-Grammy Awards party in Los Angeles. Leaked police photos revealed the brutality of the attack with bruises clearly visible around the singer's mouth and on her cheek and forehead.

Brown, whose hits include Run It! and Kiss Kiss was given five years' probation last August, ordered to perform 180 days of community service and attend domestic abuse counselling.
The Home Office said: "We reserve the right to refuse entry to the UK to anyone guilty of a serious criminal offence. Public safety is one of our primary concerns.
"Each application to enter the UK is considered on its individual merits."
Brown has the right to appeal. Sony Music also confirmed the tour has been postponed "due to issues surrounding his work visa".
It added: "Chris looks forward to performing for his fans abroad in the near future and thanks them for their continued support."
Brown had posted on his Twitter feed that he had been denied entry to the UK but the entries were later removed.