Wilkesboro, NC -- MerleFest, presented by Window World and slated for April 28-May 1, 2016, is proud to announce four more additions to the 2016 lineup: Brandi Carlile, Tim O’Brien, Sam Bush Band and Jim Lauderdale. These artists join over 100 other artists already announced, including John Prine, Old Crow Medicine Show, Dave Rawlings Machine, The Wood Brothers, Alison Brown, Peter Rowan, Doug Seegers, Steep Canyon Rangers and more! The four-day event, the largest roots and Americana music festival in the nation, takes place on the campus of Wilkes Community College in Wilkesboro, North Carolina, in the heart of Appalachia. MerleFest continues the legacy of Doc Watson and is a benefit for the college. This homecoming of roots music artists and fans draws nearly 80,000 participants every year.