Croatian right-wing singer Marko Perkovic has been banned from performing in several countries. (EPA PHOTO) Croatian right-wing singer Marko Perkovic has been banned from performing in several countries. (EPA PHOTO) Credit: AAP A hugely popular right-wing Croatian singer and hundreds of thousands of his fans have performed a pro-Nazi World War II salute at a massive concert in Zagreb, drawing criticism. One of Marko Perkovic's most popular songs, played during the late Saturday concert, starts with the dreaded "For the homeland - Ready!" salute, used by Croatia's Nazi-era puppet Ustasha regime that ran concentration camps at the time. Perkovic, whose...