When I was 17, I got an Equal Visions CD sampler (remember CDs?) outside a show in Minneapolis. I threw it on as soon as I got home. Somewhere on that CD was "Delirium Trigger" by Coheed and Cambria. Claudio's voice threw me at first, but it didn't take long for me to become a huge fan and The Second Stage Turbine Blade is still one of my favorite albums from that era.
The teenage me definitely patted the adult me on the back for this one.