What Canadian has produced a song with the Cast members of Nashville? 
Christmas with Nashville: Christmas with Nashville is an album of Christmas songs recorded by cast members of the series "Nashville". Christmas with Nashville:  The album was produced by Jay DeMarcus of Rascal Flatts (with the exception of "Christmas Coming Home," which was produced by Brad Stella). The Stellas: The Stellas are a Canadian country music duo from Whitby, Ontario.
Brad Stella