Read through several answers, there's one guy who does nothing but claim that because things get relabeled over time and in hindsight, we can now "properly" reclassify glam metal as not being metal. However to do so he'd have to deliberately ignore all the sonic trappings that verifiably make glam metal, metal. It shares all the elemental facets of basic traditional metal, but with notable hard rock and punk rock facets incorporated to give it a poppier appeal. The guitar playing, bass playing, and vocals are sonically consistent with trad metal, with poppy flourishes.