In the Semifinals of the Metal Madness tournament, it's nothing but classic face-offs and in this battle, Dio's Holy Diver goes head-to-head with Megadeth's Killing Is My Business... And Business Is Good! Only one will make it to the Championship round as we aim to determine the Best Debut Metal Album of All Time!

We almost had a thrash matchup for the ages, but Holy Diver managed to fend off Metallica's Kill 'Em All last round in one of the closest contests of the tournament. With 53 percent of the votes, Dio advanced, extending a winning streak that also counts Ozzy Ozbourne's Blizzard of Ozz and Motorhead's eponymous debut among the fallen albums.

Megadeth's first album has taken on a myriad of challengers, with the latest being a classic thrash battle against Slayer's Show No Mercy. It was Megadeth who were without mercy, however, snatching 58 percent of the votes. Previously, Killing Is My Business bumped off Mastodon's Remission and Mayhem's De Mysteriis Dom Sathanas.

So, which album will move on to the Championship round of Metal Madness 2017? Vote below for either Dio's Holy Diver or Megadeth's Killing Is My Business... And Business Is Good! as the Best Debut Metal Album of all time in the poll below!

(This poll will end on Thursday, March 30, at 10AM ET. Fans are able to vote once per hour, so keep coming back to make sure your favorite debut album wins!)

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