Top Ten Albums by Metal Bands that Changed the Bands' Style
The album that transformed Deep Purple into a metal band.
Thanks to Dio Black Sabbath transformed into a true heavy metal band. Unfortunately Ozzy Osbourne fans hate this statement though (and most of them hate Dio too).
Changed Pantera's style from Glam Metal & Heavy Metal (the album Power Metal) to Groove Metal
Changed Blind Guardian's style from Thrashy Speed Metal to Progressive/Symphonic Power Metal
Changed Helloween's style from Thrashy Speed/Power Metal to Melodic Power/Heavy Metal
Changed Voivod's Style from Raw Thrash to Technical/Progressive Thrash Metal
Death's first progressive/technical death metal album after their first 3 old school death metal records.
Changed Metallica's style from Thrash Metal to Heavy Metal
Changed Megadeth's style from Thrash Metal to Heavy Metal
Running Wild started their melodic pirate power metal style with this album, their first 2 albums were speed metal and heavier heavy metal.