The band is setting up their ritual for their demon summoning, but are only now second-guessing it.

Ray: Guys, I know we like to do the “scare Christian parents” thing with our band, but…are you sure this is a good idea? Frank: You’re just asking that now? Really?! Mikey: No turning back now, Ray. Especially since— Gerard: OH MY GOD! GUYS, LOOK!

And just like that, a mysterious entity is forming in the centre of the circle.