The Legendary Cicada Hatch

What's the name for the legendary Cicada Hatch that happens every 17 years, which last took place in 2021? The room is stumped. So I knew there was Smoky Mountains. I didn't know they were in National Park. Rick sang Big Bug Die off Hayden sang the 17 years Cicada hatch. George sang the plague, LOL, Janis sang anniversary. This is going to be a zero percenter question. Nobody got it right. Brood X or the great Eastern brood. Does that ring a bell now that you've heard it? No, not at all.