@dailymail: Dolly Parton kept her cancer diagnosis private from some of her own family, her sister Stella has revealed in a new interview with 'CBS Mornings.' Stella said the country music icon wanted to protect those around her and 'did not want people sad' or worried about her health. Parton's cancer battle was only revealed after her death on August 25, aged 80, following what her representative described as a brief illness. #dollyparton #celebrity #music #health #news