Slash from Guns N’ Roses, Corey Tylor of Slipknot, and Serj Tankian of System Of A Down are among more than a dozen artists that will be a part of an upcoming rock opera album. It’s being composed by Bear McCreary, known for his work on The Walking Dead and God of War. 

Out on May 10, the release will be promoted by a special live concert at the Fonda Theatre in Los Angeles two days later.