This is either cool or too cutesy for words depending on your attitude. It's three sisters from Monterey, Mexico. (There's your Hispanic Heritage Month tie-in.) The sisters start getting into music via Rock Band, the video game. They get instruments and start playing together, eventually posting some videos online. One of them, a cover of Metallica's "Enter Sandman" blew up. This was in 2015. They called themselves The Warning. The oldest sister at the time was sixteen, the youngest was thirteen. Okay, this is where it turns into cool versus cutesy. The cool part of it, coming from someone who grew up with two rock obsessed brothers, is that they are sisters. The whole time I was growing up, my brothers and I fantasized about having a band together. When we were young all three of us took guitar lessons but only my brother Tim stuck it out. (I got a bass a few years later but never got good enough.) Being in a band with siblings, especially when you're still in your teens, has got to be one of the best ways to begin a music career. Staying together as a unit for several years has got to be the absolute shit.
Here's a couple videos I ran across. One is a veiled ad for Patreon, the
site that gets you sponsors. Nevertheless, it's a good place to start.
The other video is clips of The Warning chronologically from when they
first started up until 2022.
The Warning Evolution: 2009-2022 at YouTube 45 minutes