Chris BrownChris Brown has been denied entry into Great Britain on the basis of his past assault conviction, meaning he'll have to postpone a small concert tour there.

Officials confirmed to BBC News that the 21-year-old singer's visa application was scuttled: "We reserve the right to refuse entry to the UK to anyone guilty of a serious criminal offense. Public safety is one of our primary concerns."

Brown, who was sentenced to community service for assaulting ex-girlfriend Rihanna in early 2009, now must cancel at least six concerts, beginning with a show scheduled for Wednesday in Scotland. He also scrapped a show in Ireland.