British singer, 37, also cancels US shows as she focuses on treatment

Jessie J has postponed a concert tour after revealing she will undergo a second operation as part of her breast cancer treatment.

The 37-year-old singer, whose full name is Jessica Cornish, announced her diagnosis in June when she began treatment.

In a video posted on Instagram on Thursday, she said: “Unfortunately, I have to have a second surgery, nothing too serious, but it has to be done before the end of the year, and unfortunately that falls right in the middle of a tour that I had booked.”

Jessie J had been due to perform in the UK and Europe in October and in the US in November. She said the UK and Europe dates would be rescheduled to April 2026, while the US tour had been cancelled.