Put your hands up for the next return of Hammersonic, one of the first rock and metal international festivals to be held in Indonesia and the biggest annual rock and metal music festival in Asia-Pacific on March 27 - 28, 2020. Since 2012, the festival has become one of the trend-setters in Indonesia's metal music scene, and a must for music lovers anywhere. Watch performances by epic metal bands like Slipknot and many more to be announced soon!