Dozens of Hank Williams' songs are among the best known country tunes in the world, but apparently the songwriting and singing great had a few rarities in his back pocket.

Some previously unheard tracks -- with predictably Williamsonian titles like "How Many Times Have You Broken My Heart?", "You've Been Lonesome, Too" and "The Sermon on the Mount" -- are getting covered by some big names, including Jack White, Merle Haggard, Bob Dylan, Sheryl Crow, Norah Jones and Alan Jackson.

Rolling Stone reports, "The songs featured in the set were rescued from notebooks left behind in a leather briefcase by Williams after he died in 1953 at the age of 29. The notes contained lyrics and song ideas that were finished by the 13 artists who contributed to the disc."

Thus, the title of the compilation album is "The Lost Notebooks of Hank Williams," and it will arrive Oct. 4.