 New wave of American heavy metal

The New wave of American heavy metal (also known as NWOAHM (or NWoAHM) and the New wave of American metal) was a heavy metal music movement that originated in the United States during the early to mid-1990s and expanded most in the early to mid-2000s.Some of the bands considered part of the movement had formed as early as the late 1980s, but did not become influential or reach popular standing until the following decade.