The Warning

The Warning are three sisters from Monterrey who went from a viral childhood Metallica cover to opening for Guns N’ Roses and Muse — one of the clearest new-generation rock stories anywhere, and it’s happening in Spanish-speaking North America first.

For the lab they’re a live case study in how rock renews itself: new blood, new geography, same lineage — the Metallica cover that started it closed a loop the atlas exists to draw.