While disappointed fans at this weekend’s Hellfest were not treated to a set by Manowar, they were treated to something else pretty goddamn special: the debut of a new King Diamond song, “Masquerade of Madness.” You can watch fan-filmed video below:

In March, King Diamond revealed during an interview with Full Metal Jackie that his next offering will be a double album which tells a story set in a 1920s mental institution:

“I chose that because I think it’s a very creepy scenario. And the thing is that I know that somebody has talked about that, but that’s not the setting, actually. There’s a lot of other things involved, but the setting looks as if it was a 1920s asylum — that’s exactly what it looks like. And some of the things that go on that we’re gonna show onstage is also things that certainly was going on back then, when medicine was beginning to take a beneficial turn in history and actually being able to help human beings live longer. But there was some experimentation going on, too, that was absolutely gruesome. Some of that is involved in the story, but it’s something totally different. Once you get to the second part of the story, you will begin to suddenly understand that, ‘What the hell is going on here? What is this really about?’ Cause there’s a whole different story that will not come to you till second part. But in the first part, you’re gonna get to know a lot people at a certain place.

“Instead of telling the story — it’s way too much — but it does take place, I won’t say where, what it’s called, because that’s the title of the album and I won’t let that out yet. But some of it takes place here, this world, and some of it takes place in a parallel world. And there’s a correlation between what happened to me and what happens to some people in this place and where they suddenly appear. And you will find out why they are there, how they appear there and the places down the road. I won’t say too much right now, but it’s gonna be very creepy.”