There are a number musicians out there who wear masks. It's not a bad idea, especially if you make it big. It allows for a certain amount of personal freedom then someone with a recognisable face has. Now man on this list have been seen without their masks but there are a few who haven't. and they get extra points.
10) Wes Borland
The guitarist for Limp Bizkit's stage appearance has evolved from simple make up to various make-up and mask configurations, it's hard to know what part is really Wes's face.