Trivium frontman Matt Heafy originally revealed his black metal project Mrityu in 2012, though the project never put out any material. Mrityu will feature at its core Heafy and Emperor frontman Ihsahn, as well as guest appearances from Behemoth's Nergal and ex-Gorgoroth vocalist Gaahl. In an interview with Hatebreed vocalist Jamey Jasta, Heafy says he and Ihsahn have about eight or nine songs written and are currently piecing the project together.

"Now, Ihsahn is producing my black metal project. He's co-written several songs – we're finally kind of piecing that together, we've got eight or nine songs written on it. He's producing the whole thing, co-writing some of it. I'm going to try to get a hero of mine in black metal on every single song. So, Ihshahn's going to do some vocals, Nergal's going to do a song; Gaahl, I think, is about to do a song, hit up some other people."

Heafy also offered his thoughts on the recent Lords Of Chaos movie, which has received very mixed reviews.

"Yeah. I lived by that book as a kid. I was 15-16 and read that book, like, every other month. So the movie – I think if I saw that at 16, I'd be pissed. But seeing it as an adult after we get to see that Spinal Tap is a real thing, it's every freaking day on the road, then I appreciate it. It's kind of like Detroit Rock City of black metal. I feel like it's that.

"I grew up having Emperor posters and In Flames posters on my wall and reading Lords of Chaos and just worshipping Emperor, having all their records and tapes and shirts."