Toby Keith salutes troops at 9/11 concert in Washington, D.C.
Jake Owen credits his ex-girlfriend for "Barefoot Blue Jean Night."
Blake Shelton tries hard to avoid "messing up" Miranda Lambert's songs.
James Taylor tenderly sings of moving on at 9/11 memorial.
Travis Tritt claims shady organization at a tornado benefit concert.
Bill Monroe's high-lonesome sound came from a painful childhood.