Halo Isgod of Element a440
Halo brings the dirty, creative, industrial metal element to this list. He has crafted his own vocal brand, drawing from Marilyn Manson, Nine Inch Nails and a few other influences, often while wearing a strait jacket and whipping his crazy long black hair around his custom-made mechanical microphone (you gotta see this thing).
Billy Zane Luna from Back From Ashes Back From Ashes offers up some great radio-friendly hard rock/metal vocals. The aggressive instrumentals and distinctive double bass pair up with the frontman's melodic bridges, strong carrying roars, and screams. Think Sevendust meets Soilwork. You can also tell that Billy is extremely passionate about what he does, which makes sense since the band has claimed that a lot of their inspiration comes from positive vibes, love and family.