Bluegrass music legend Ralph Stanley is shown in Clintwood, Va., in this April 19, 2006, file photo. Stanley and Doc Watson, two pillars of Appalachian music, will headline this year's Bristol Rhythm & Roots Reunion. It will be the first time either has performed at the annual festival celebrating the region's musical heritage. The festival runs Sept. 19-21 in downtown Bristol. (AP Photo/Steve Helber, file)