Eh I’m not sure if it’s possible to know if they were good singers or not, both vocals were autotuned into oblivion.

Southern Grist in Nashville made a cereal marshmallow IPA a little over a year ago...it was very tasty. 

Sure enough, both the contemporary Christian and country industries are both based in Nashville, and there is a fair amount of overlap of the personnel who work on those records. A friend of mine works for a fairly in-demand producer in town whose credits are about 75% CCM and 25% slick, modern country.