Heavy metal first hit the airwaves back in the 1970s and 80s, but many of the elders of metal continue to rock, shred, thrash, and headbang today. These are the oldest living heavy metal icons.

In iOS, the Control Center can be used to quickly take a picture, jot down a note, turn on the lights, control your Apple TV, and much more. It's useful and convenient because you don't even have ...