A two-time Grammy winner and country music Female Vocalist of the Year, Kathy Mattea graced the airwaves with smartly crafted songs that walk the line between folk sensibility and commercial appeal. Songs such as “Eighteen Wheels and a Dozen Roses” and her Grammy-winning single, “Where’ve You Been,” helped make her a star. These days, she’s turned her attention toward her West Virginia roots, championing the hard-working men and women of the coal fields as well as throughout the southern Appalachians. Her 2008 CD, “Coal,” and this year’s “Calling Me Home” are honest and meaningful as her chart-topping hits of the ’80s and ’90s. On Saturday, Mattea brings her songs to NCSU’s Stewart Theatre. www.ncsu.edu/arts/stewart