I'll have to give you that one, Otherside. Hayseed Dixie does rock the bluegrass covers pretty hard. That Corn Liquor song seems somewhat inspired by a few other songs but is quite a decent original song too. (And I admit Iron Horse does slow down their covers too much, but it's brilliant on the Goo Goo Dolls songs.)
So... folk led me to folk metal (as my metal proclivities often do), and that led me to Polish folk-infused metal of all things. And I suppose being Cantr, Polish should be expected from time to time.

This meandering caused me to stumble into "Pani Pana Zabiła" by Percival Schuttenbach
In any case - this song reminded me of a Polish version of Flyleaf.