Rosanne Cash will undergo brain surgery in New York for a rare but benign condition, it was announced Tuesday (Nov. 6) on her official Web site. The singer-songwriter, daughter of the late Johnny Cash, has been diagnosed with chiari I malformation, a congenital malformation of the skull that affects the brain and spinal cord. "It's nothing like a tumor or hemorrhage or anything," manager, Danny Kahn, told the Associated Press. "It's elective surgery." As a result, Cash has canceled the final four dates of a national tour promoting her latest album, Black Cadillac. The cancellations include shows this week in Kansas City, Lafayette, Ind., and Kent, Ohio, and a Nov. 30 date in Washington, D.C. Following her recover, she plans to return to the studio to finish work on her debut album for Manhattan Records, resume touring and complete a new book to be published in early 2009.