Discovered Amigo the Devil last week. Wow. This guy tours and opens for heavy metal acts like Clutch, Murder by Death, and Flogging Molly. Calls his music "murder ballads" influenced by Marty Robbins & Johnny Cash.
Here's a great 4 song set - really love the opening track Cocaine & Able (starts 1 minute in), and One Kind of People (starts 17 minutes in).
And I just can't stop listening to this one in particular.