Sonar attendees try VR (Virtual Reality) headsets during the Sonar Festival 2015 in Barcelona on June 20, 2015. The Sonar music festival, a rendez-vous every year in Barcelona for the most cutting-edge fans of techno and electronica, is held from June 18 to 20, 2015. AFP PHOTO/ JOSEP LAGO        (Photo credit should read JOSEP LAGO/AFP/Getty Images)