Earl Scruggs performs in Atlanta in 2003. Rick Diamond/WireImage hide caption

itoggle caption Rick Diamond/WireImage

Earl Scruggs onstage in 2007. Michael Buckner/Getty Images hide caption

itoggle caption Michael Buckner/Getty Images

Earl Scruggs shown during a show in Indio, Calif., on May 3, 2008. Michael Buckner/Getty Images hide caption

itoggle caption Michael Buckner/Getty Images

A poor, cross-eyed boy from Kentucky, Bill Monroe created the hard-driving, high-lonesome genre known as bluegrass. Thomas S. England/Time & Life Pictures/Getty Images hide caption

itoggle caption Thomas S. England/Time & Life Pictures/Getty Images

Clockwise from upper left: Ramblin' Jack Elliott, Wanda Jackson, Tegan and Sara, Trombone Shorty.   hide caption

itoggle caption  

Earl Scruggs performing at Stagecoach, a country music festival held in Indio, Calif., in 2008. Michael Buckner/Getty Images hide caption

itoggle caption Michael Buckner/Getty Images

Earl Scruggs performs at the Stagecoach Music Festival in 2007. Karl Walter/Getty Images hide caption

itoggle caption Karl Walter/Getty Images