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Also on board: international EDM stars Galantis and Alison Wonderland, dubstep headbanger Sullivan King and many more.

It’s one of rock’s best-known and strangest songs: a six-minute radio hit that starts out as a piano ballad, becomes a high-pitched opera, then tumbles into a headbanger’s anthem.

Peppered with O.G.s like Ministry and Sisters of Mercy and young bloods like Turnstile and Machine Girl, it will be a headbanger’s ball to remember.

For the fiery headbanger, Post unleashed a string of guttural screams and blew half his pyro budget for his biggest rock-star moment of the night.

Park thrashes through the “Hedwig” songbook with aplomb; high points include the headbanger “Angry Inch,” the aching anthem “Wicked Little Town” and “Wig in a Box,” a tour-de-force tune of self-discovery.