ADVERTISEMENT Controversial Croatian singer Marko Perković - known professionally as Thompson and who has a song which opens with the chant “Za dom spremni!”, the Croatian version of the Nazi salute “Sieg Heil” - gathered tens of thousands of fans to Zagreb this weekend. As we reported earlier this year, Saturday's gig at the Hippodrome was set to be the biggest concert in Croatia’s history . Perković broke the record for ticket sales – overtaking the likes of The Rolling Stones and Tina Turner.