Folk music fans have a right to feel giddy this week.

The critically acclaimed Anais Mitchell, who has been ballyhooed by none other than musical icon Ani DiFranco, joins the much-honored Grammy Award winners Bon Iver on their local bill. Of course Bon Iver’s own Justin Vernon and his band mates are also huge fans of Mitchell’s music. Vernon is one of the major name artists who have collaborated with Mitchell.