Blizzard games have always had a little bit of heavy metal to them. So it's fitting that Chris Metzen, one of their most beloved developers, brought a touch of the rock to his opening keynote today at BlizzCon.

Our video editor Chris Person cut together this highlight reel of Metzen's greatest roars. Sit back, relax, and enjoy the intensity. And hey, if you want to hear Metzen front an actual band, there's always this (pretty good!) performance of Sweet Home Alabama from a few years back.