Jessie J announced that all U.S. dates of her No Secrets tour have been cancelled and that she has postponed her U.K. and European shows ahead of her second surgery after her breast cancer diagnoses. The singer announced the news in a post shared to Instagram on Thursday. I feel frustrated and sad, but also it is what it is, and I need to be better. Following her mastectomy after her breast cancer diagnosis in June, Jessie shared that the cancer did not spread. Six weeks after her first surgery, Jessie was admitted to the hospital once again to address ongoing complications.