Busta Rhymes found his most recent trip to the U.K. a bit more difficult than he anticipated, when immigration officials detained him due to 'unresolved convictions'.Rhymes was scheduled to perform at a charity concert, at the capital's Royal Albert Hall. The event's promoters were attempting to reach out to fellow U. S. rapper, Ludacris, as a replacement, but a judge has recently ordered the immediate release of Rhymes. Looks like Busta may be performing after all.