[1] The term is used to describe bands that make heavy use of the elements and style of that era of metal music.
initially started in the mid-2000s with a number of bands, such as Cauldron, Skull Fist, and Enforcer, who began to write and record music that reflected the style and sound of classic heavy metal.
[1] While the overall movement's focus was placed on replicating both the sound and success of traditional heavy metal, many of the early N.W.O.T.H.M bands also incorporated noticeable influence from more melodic mainstream rock and alternative genres.
However, by the mid-2010s, the movement took a shift in its creative direction, growing into a substantial underground scene with a less commercial, more gritty sound.
[1] Attire and appearance typically associated with heavy metal music, such as long hair, leather jackets/vests, and tattoos, are present in the N.W.O.T.H.M.