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John Mellencamp’s musical theater collaboration with Stephen King, Ghost Brothers of Darkland County, is putting together a cast in preparation for its debut in September.

Some of the stars who have been cast in the production include Kris Kristofferson, Rosanne Cash, Sheryl Crow, Elvis Costello, Neko Case and boxer Joe Frazier, according to Fire Wire.

Mellencamp and King have been working on the musical – which Mellancamp says “centers on the deaths in 1957 of two brothers and a young girl and the legend that grows out of the tragedy” – since 2000.

“What has happened is that the father had two older brothers who hated each other and killed each other in that cabin,” the singer said, according to Consequence of Sound. “There’s a confederacy of ghosts who also live in this house. The older [dead] brothers are there, and they speak to the audience, and they sing to the audience.”

The soundtrack for the musical was produced by T-Bone Burnett and will be available as a three-disc package. One disc will contain only songs, and the other two will include the entire production of the spoken script and songs performed by the cast.

Ghost Brothers of Darkland County is scheduled to premiere at Atlanta’s Alliance Theatre in September 2010. The soundtrack will be released before the debut.