Hammersonic Festival is a heavy metal festival held annually at Jakarta in Indonesia. It is the biggest festival in South East Asia. Notable bands that have performed in Hammersonic are Bullet For My Valentine, Hatebreed, Morbid Angel, Fleshgod Apocalypse, Belphegor Cradle Of Filth, Lamb of God , As I Lay Dying, Epica, Cannibal Corpse, Obituary, Kreator, Destruction, Dying Fetus, Nile, Lock up, Suffocation, Dirty Rotten Imbeciles, Hour of Penance, Chthonic, Psycroptic, and Origin.