Heavy Metal music was developed in Europe.
"== History ===== Antecedents: 1950s to late 1960s ===Heavy metal's quintessential guitar style, which is built around distortion-heavy riffs and power chords, traces its roots to early 1950s Memphis blues guitarists such as Joe Hill Louis, Willie Johnson and particularly Pat Hare, who captured a "grittier, nastier, more ferocious electric guitar sound" on records such as James Cotton's "Cotton Crop Blues" (1954)
 A few commentators  mainly American  argue for other groups, including Iron Butterfly, Steppenwolf, Blue Cheer or Vanilla Fudge as the first to play heavy metal

