Merle Haggard has postponed or canceled five tour dates because of head and neck pain, according to his spokesperson. He missed a concert in Wabash, Ind., on Thursday night (July 16). The cancellations include a Saturday appearance at the Smoky Mountain Fan Fest and a Sunday performance at Jamboree in the Hills near Wheeling, W.Va. He also canceled a Friday stop in Mount Pleasant, Mich., and a Monday concert in Kettering, Ohio. His next tour date is scheduled for Sept. 18 in Clinton, Okla., according to his Web site. Haggard, 72, had a tumor removed last year after being diagnosed with lung cancer.