There is more than one artist with this name:
1) Bewitched is a Swedish Blackened Thrash Metal band.
2) Bewitched was an American Indie Rock band. Led by former Sonic Youth drummer Bob Bert. They released two albums. "Brain Eraser" in 1990 and "Harshing My Mellow" in 1992.
3) Bewitched is a Chilean Black/NWOBHM-style band. Mostly in the vein of Mercyful Fate (long solos, etc.) as well as large amounts of doom stylings, they rely on a twin-guitar attack coupled with a black metal rasp and clean vox.