Members of the Mountain Goats perform live at the 2013 Newport Folk Festival. Adam Kissick/NPR hide caption

itoggle caption Adam Kissick/NPR

The Mountain Goats, Live In Concert

Watch excerpts from the band's set, including a song unfamiliar even to diehards: "Animal Mask."

Colin Meloy performs at the 2013 Newport Folk Festival. Meaganc Beauchemin for NPR hide caption

itoggle caption Meaganc Beauchemin for NPR

Colin Meloy, Live In Concert

Watch members of The Decemberists and Laura Veirs join Meloy on a version of "Yankee Bayonet."