Considering its eclectic line-up, this year's Newport Folk Festival proves that in 2011, it's hard to define what is and is not part of "folk culture." By purist definitions, music made by a major-label pop group like TEGAN AND SARA wouldn't qualify. But if more loosely, "folk" can be applied to any "folk group" that maintains distinct traditions, and boasts visible customs, music, dress, etcetera, then Tegan and Sara fit the "folk" label, based solely on the customary culture amongst the fans at their shows.