For fans of Killswitch Engage. I'm sure Silverwolf will like Maria if not her music, tattoos and super weirdness abound in the bimbo-metal-pshyco package that is In This Moment:
I'm 99% sure the rest of Exilian will not enjoy this but to the 1%: Enjoy
And then check out Comanche and Violet Skies if this was your thing, both great songs as well
She also has a few songs that sound much more bullet for my valentine-esque such as Beautiful Tragedy.