What happens when you stick one of the world’s biggest mainstream metal bands in a small club, down a guitar player (to a family emergency) and have them play for a bunch of aggro hardcore fans? Well, if it’s Killswitch Engage, they bring out the very heaviest of their material, invite the crowd to get go as crazy with the moshing and stage diving as they want to and proceed to win the whole place over with a set full of passion and brutality.

Watch Kilswitch Engage’s full This Is Hardcore set from Philadelphia’s legendary Electric Factory here below.