Videogame soundtracks are all about sweeping orchestral movements that help put you in the world, thanks to their sense of scale, grand moments and more, but in 2016, DOOM changed all that. For DOOM Eternal, composer Mick Gordon is back on deck, composing an entire new score, but also, conducting the world’s first Heavy Metal Choir.

Bethesda have released a cool behind the scenes video on how the choir came together, including the process of it, as well a small sample of it at the end.

DOOM Enteral is out on March 20 for PC, Xbox One and PlayStation 4, with the Switch release to come a little later on.