Jessie J forced to cancel tour dates for further breast cancer surgery Jessie J has been forced to cancel her US tour so she can have further surgery later this year amid her ongoing battle with breast cancer. 29 August 2025 Jessie J has been forced to cancel her US tour so she can undergo further cancer treatment. Jessie J has cancelled tour dates as she needs more breast cancer treatment The 37-year-old singer revealed in June that she had a mastectomy amid her battle with breast cancer and has explained on social media that she now needs a second surgery.