Sheryl Crow has opened up about her experiences with cancer in a new interview.The singer, who successfully recovered from breast cancer in 2006, was also later diagnosed with a “benign” brain tumour in 2011.Speaking to The Guardian in a new interview, the singer said: “Surviving breast cancer redefined who and how I am, although I’m not sure I’d recommend it. Until then, I’d spent a lifetime being a caretaker for everyone around me.“From then, I started to put myself first.