The creeping terror of AC/DC's "Night Prowler" is up against the frantic aggression of Metallica's "One" in the second round of our Rock's Scariest Song battle.

In honor of Halloween, we’ve chosen 16 of rock’s scariest songs. The field will be sliced, diced and chopped in half every week based on your votes, until only the most terrifying song in rock history remains alive.

AC/DC made mincemeat of Warren Zevon in the opening round, dispatching Zevon's classic "Werewolves of London" with more than 73 percent of the vote. Metallica managed an even more impressive victory in its matchup against Bloodrock's "D.O.A.," which ended with them claiming more than 75 percent of the turnout.

Now, these two formidable contestants face off to determine who'll have the honor of moving on to the third round. It's bound to be a closer fight than either act faced from their previous opponents, but only one song can emerge victorious. Will it be AC/DC's slow-grinding tale of a menacing intruder, or Metallica's anguished hit about a war vet praying for death after losing his limbs — and all ability to communicate — in battle? It'll all be decided by your votes.

We've included both songs below so you can make an informed choice, and you can vote once per hour in each of this round's Rock’s Scariest Song battles until polls close on Oct. 19 at 11:59PM ET. Your choice for Rock’s Scariest Song of all time will be revealed on Nov. 1, 2015.

Listen to AC/DC's 'Night Prowler'

Watch Metallica Perform 'One'

Metallica Albums Ranked Worst to Best