When will cicadas finally leave?

NASHVILLE, Tenn. (WKRN) — Right on cue, trillions of cicadas are emerging in the U.S. as 'cicada-geddon' begins.

The bugs have already made appearances across Illinois, Tennessee, Kentucky, Missouri, Wisconsin, North Carolina, and South Carolina, and are expected to bombard even more states into the summer.

Cicadas, while harmless, are known for their singing and chirping, which only seem to get louder by the day. So loud, in fact, that residents have called the police to report the alarming sounds.