We’ve gotten a lot of expected news from My Chemical Romance lately, including a tour that hits Boston in September and headlining gigs at festivals like Firefly and Riot Fest. But yesterday (May 12) we received something relatively unexpected — a mountainous new beast of a six-minute song called “The Foundations of Decay,” which serves as their first new music in eight years. It follows a one-off single “Fake Your Death,” included on 2014 greatest hits album May Death Never Stop You, and could lead to the New Jersey band’s first new album since 2010. But perhaps more important than what’s to come is the urgency of the now, and with it the news that My Chemical Romance’s fire still burns with a mighty fervor that can fill arenas and festivals. This one should sound huge at every show. Get into it below.