The guitar picking phenomenon takes home the trophy for the second year in a row.
The North Carolina folk-rockers were honoured during Wednesday night's Nashville ceremony.
The Kentucky crooner took home the honor for his self-produced Can I Take My Hounds To Heaven?
The long-tenured songstress claims the trophy thanks to her self-penned tune, 'Just Like That.'
The powerhouse vocal pairing take home their second consecutive win in the stacked cateorgy.
The bluegrass pioneers were presented with the accolade during Wednesday night's ceremony at The Ryman Auditorium.
