Tweedy's new album is titled Sukierae. Piper Ferguson/Courtesy of the artist hide caption

itoggle caption Piper Ferguson/Courtesy of the artist

tUnE-yArDs is one of the artists performing at this year's Newport Folk Festival. fjludo via Flickr hide caption

itoggle caption fjludo via Flickr

July 14, 2012, is the 100th anniversary of Woody Guthrie's birth. Al Aumuller/Courtesy of the Woody Guthrie Archives hide caption

itoggle caption Al Aumuller/Courtesy of the Woody Guthrie Archives

Uncle Tupelo at the Sapphire Supper Club in Orlando, Fla. Jeff Tweedy (second from left) went on to form Wilco, while Jay Farrar (second from right) created Son Volt.

Jim Leatherman hide caption

itoggle caption Jim Leatherman

Clockwise from upper left: Leonard Cohen, Lou Reed, The Mountain Goats, Suzanne Vega. Courtesy of the artists hide caption

itoggle caption Courtesy of the artists