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Photos   -  We Walk the Line: A Celebration of the Music of Johnny Cash

Shooter Jennings, Don Was and Willie Nelson Shooter Jennings (left), Don Was and Willie Nelson perform together at "We Walk the Line: A Celebration of the Music of Johnny Cash" in Austin, Texas, on April 20, 2012.
Pat Monahan and Shelby Lynne Pat Monahan and Shelby Lynne sing during "We Walk the Line: A Celebration of the Music of Johnny Cash" in Austin, Texas, on April 20, 2012.
Amy Lee of Evanescence Amy Lee sings during "We Walk the Line: A Celebration of the Music of Johnny Cash" in Austin, Texas, on April 20, 2012.
Brandi Carlile at ACL Live Brandi Carlile performs during "We Walk the Line: A Celebration of the Music of Johnny Cash" in Austin, Texas, on April 20, 2012.
Ronnie Dunn in Austin Ronnie Dunn performs during "We Walk the Line: A Celebration of the Music of Johnny Cash" in Austin, Texas, on April 20, 2012.
We Walk the Line: Matthew McConaughey Matthew McConaughey speaks onstage during "We Walk the Line: A Celebration of the Music of Johnny Cash" in Austin, Texas, on April 20, 2012.
Shooter Jennings and Buddy Miller Shooter Jennings (left) and Buddy Miller entertain the crowd during "We Walk the Line: A Celebration of the Music of Johnny Cash" in Austin, Texas, on April 20, 2012.
Iron & Wine Sam Beam performs at "We Walk the Line: A Celebration of the Music of Johnny Cash" in Austin, Texas, on April 20, 2012.
Kris Kristofferson Honors Johnn Cash Kris Kristofferson appears at "We Walk the Line: A Celebration of the Music of Johnny Cash" in Austin, Texas, on April 20, 2012.
Sheryl Crow Sheryl Crow appears at "We Walk the Line: A Celebration of the Music of Johnny Cash" in Austin, Texas, on April 20, 2012.
Willie Nelson in Austin Willie Nelson plays a song at "We Walk the Line: A Celebration of the Music of Johnny Cash" in Austin, Texas, on April 20, 2012.