The big story surrounding Arch Enemy's ninth studio album is that the band has done the impossible. They replaced their lead singer calmly, quietly, and without anybody knowing about it until it was already done—and somehow didn't miss a beat in the process. It's hard enough to replace a singer just once, but Arch Enemy has done it twice, and while there are still some people bellyaching over the loss of original vocalist Johan Liiva, it's safe to say Angela Gossow left a much bigger footprint on the band, and on metal in the new millennium. With her at the mic, Arch Enemy were one of the bands responsible for popularizing so-called "melodic death metal," if not in the mainstream, at least outside of the dank sub-basements of the underground. Plus, she reminded a new generation of female headbangers that you didn't need to be an opera singer, a goth chick, or a bassist to find a place in extreme metal.