To celebrate what would have been Johnny Cash's 80th birthday (Feb. 26), a host of country stars are banding together to bring a great tribute show to the legendary Austin City Limits TV show. The artists will be performing live at Austin’s Moody Theatre with a special tribute show titled 'We Walk The Line: A Celebration of the Music of Johnny Cash.' Organizers of the show just announced today that the two newest additions to the already impressive April 20 lineup are Willie Nelson and Sheryl Crow.

This pair adds even more strength to an already strong lineup that includes Ronnie Dunn, Kenny Chesney, Lucinda Williams, Kris Kristofferson, Ray LaMontagne, Shooter Jennings, Jamey Johnson, Chris Cornell, John Hiatt, Carolina Chocolate Drops and Amy Lee. And the artists won't be going at it alone. They'll be supported by the musical stylings of a band made up of legendary talent including Buddy Miller, Kenny Aronoff, Ian McLagen and Greg Leisz -- all under the musical direction of Don Was.

“Having had the privilege of working with Johnny Cash on a Highwaymen project in 1995, I was able to experience firsthand the incredible spirit and musical gift that lived within Johnny,” Was said in a press release. “We have an all-star line-up of incredible talent performing the songs that made Johnny a legend including fellow Highwaymen Kris and Willie.  It will be an incredible evening of music of special combinations, duets and jams.”

Not only will the event honor the Man in Black, it will be raising money for Charley's Fund, an organization that fights the fatal childhood disease Duchenne Muscular Dystrophy. Tickets for the live show are available for purchase on the Austin City Limits website.