Heavy Metal music was started in the United States.
 Although thrash metal began as an underground movement, and remained largely that for almost a decade, the leading bands of the scene began to reach a wider audience
 By the mid-1970s, heavy metal aesthetic could be spotted, like a mythical beast, in the moody bass and complex dual guitars of Thin Lizzy, in the stagecraft of Alice Cooper, in the sizzling guitar and showy vocals of Queen, and in the thundering medieval questions of Rainbow

