Iron Maiden.
That's all I need!
Buuuut, I have some others that I really love too.
Kamelot
Pink Floyd
Satan
Bôa (not the korean pop singer... these other guys from London: http://en.wikipedia.org/wiki/B%C3%B4a)
Halestorm
Red Hot Chili Peppers
Metallica
Our Lady Peace
Three Days...