Many casual listeners still meet The Warning the same way millions first did more than a decade ago: three sisters from Monterrey, Mexico, tearing through a Metallica cover on YouTube. That viral “Enter Sandman” performance, posted in 2014, made Daniela, Paulina and Alejandra Villarreal famous while they were still very young. It also stuck to them. For years they had to keep proving that they were a working hard-rock band, not a one-clip novelty.
From viral cover to working rock band
On November 12, 2026, the proof arrived in a form the music industry itself votes on. “Ego,” a Spanish-language …