Patty Griffin, Robert Plant and Frank Melfi
Robert Plant: The Voice That Sailed the Zeppelin,
Robert Plant and Patty Griffin perform onstage at the 13th annual Americana Music Association Honors and Awards Show at the Ryman Auditorium on September 17, 2014 in Nashville, Tennessee
Robert Plant and Patty Griffin perform onstage at the 13th annual Americana Music Association Honors and Awards Show at the Ryman Auditorium on September 17, 2014 in Nashville, Tennessee
Robert Plant and Patty Griffin perform onstage at the 13th annual Americana Music Association Honors and Awards Show at the Ryman Auditorium on September 17, 2014 in Nashville, Tennessee
Robert Plant and Patty Griffin perform onstage at the 13th annual Americana Music Association Honors and Awards Show at the Ryman Auditorium on September 17, 2014 in Nashville, Tennessee
Robert Plant and Patty Griffin perform onstage at the 13th annual Americana Music Association Honors and Awards Show at the Ryman Auditorium on September 17, 2014 in Nashville, Tennessee
Robert Plant and Patty Griffin perform onstage at the 13th annual Americana Music Association Honors and Awards Show at the Ryman Auditorium on September 17, 2014 in Nashville, Tennessee
Robert Plant and Patty Griffin perform onstage at the 13th annual Americana Music Association Honors and Awards Show at the Ryman Auditorium on September 17, 2014 in Nashville, Tennessee
Robert Plant and Patty Griffin perform onstage at the 13th annual Americana Music Association Honors and Awards Show at the Ryman Auditorium on September 17, 2014 in Nashville, Tennessee
Robert Plant and Patty Griffin perform onstage at the 13th annual Americana Music Association Honors and Awards Show at the Ryman Auditorium on September 17, 2014 in Nashville, Tennessee
Patty Griffin and Robert Plant pose backstage at the 13th annual Americana Music Association Honors and Awards Show at the Ryman Auditorium on September 17, 2014 in Nashville, Tennessee