Wed 8/28, 1:30p on Freeform, Carol Boss speaks with sister filmmakers Julie Simone and Vicki Vlasic. The two return to their roots to film in the Appalachian Mountains at the world's oldest Fiddler's Convention where some of the best off-the-charts pickin' and fiddlin' are keeping old-time and bluegrass music alive with multiple generations jamming together.