Judas Priest’s namesake razor-blade logo is recognized the world over. So, too, is the band’s leather-and-studs look, the roughness and rebelliousness seamlessly meshing with the group’s no-nonsense music. Both trademarks arrived with 1978’s Stained Class, a benchmark not only for the British quintet but for the international hard-rock community. Boasting cleaner, crisper, and more refined production than previous efforts, the record became an archetype of the style that ultimately became speed metal.