The singer was indicted by a judge from Buenos Aires for an incident in 2013 where he allegedly ordered beating and stealing the money and gear of an Argentinean photographer. Until this case is solved Justin cannot travel to Argentina. If he does, he will be arrested.
Apparently, Justin has a plan. His lawyers are appealing this accusation, arguing that the judge is looking for publicity and demand that this case should be dropped. The big problem for the artist is that his South American tour will start next March and, at the moment, Argentina, his biggest fan base and market, is out of it.