Alan Jackson will headline a benefit concert for the Colon Cancer Alliance on March 20 at Nashville’s Ryman Auditorium. All proceeds from the concert will benefit the CCA’s Blue Note Fund, helping colon cancer patients in need. Tickets for the fifth annual Stars Go Blue concert go on sale Friday (Jan. 18) at Ticketmaster. In 2010, Jackson’s wife Denise was diagnosed with colorectal cancer. “That really brought to my attention the CCA and what the organization does, and more specifically what the Blue Note Fund does for the Nashville area and the rest of the country as well,” Jackson said.