"I and Love and You" by the Avett Brothers. Sorry the video is so big; I can't size it down, but you can go watch it or listen to the audio of their set here.
The full 2013 archive contains photos, video, and mostly audio of lots of the festival's best acts: I particularly like Andrew Bird, Tift Merritt, Colin Meloy, Nicki Bluhm and the Gramblers, the Felice Brothers, Justin Townes Earl, the Milk Carton Kids, Shovels and Rope and JD McPherson. Unfortunately, they're still missing coverage of a bunch of great acts like the closing set by Beck which we caught online: it was tremendous.
|from NFF's Tumblr Blog|
Maybe next year we can actually make it to the show. It would be pretty sweet for the girls' first concert to be the iconic Newport Folk. Bob Dylan (and their Papa) would be so proud of them.