Jessie J was left "frustrated" after her cancer surgery was postponed.

The Price Tag singer underwent a mastectomy in June as part of her treatment for breast cancer, and later revealed she would need another operation.

Jessie was forced to rearrange her 2025 tour dates to schedule the surgery, but on Monday, the star took to social media and explained the treatment has been pushed back.

Jessie said in a clip posted to Instagram, "Some of you may know, some of you may not know, I was supposed to have a second breast surgery two weeks ago. So a week before my surgery, I went to my surgeon and we discussed my surgery, and it felt a little more complex than he was anticipating and referred me to a different surgeon who I then saw, had a meeting with, who said: 'I think this can wait a little while.'"

The star continued, "Obviously, I'd already cancelled my tour so I was obviously frustrated, but again it's out of my control and two different surgeons had two different opinions."

After receiving the news, the 37-year-old singer explained she was trying to "make the best" of the situation and went into "Jessie J mum stealth mode" to organise new dates for her rescheduled U.S. tour.

Fans who had tickets for the postponed dates will have the chance to buy new tickets on Tuesday, with remaining tickets on general sale from Friday.

Last month, a visibly emotional Jessie returned to the stage for her first live performance following her breast cancer surgery.

The Domino star performed a set at the BBC Radio 2 In The Park event in Essex and told fans she was "grateful" to be there.

"I had breast cancer surgery 11 weeks ago today," she told the crowd. "And the last show I did, I had no idea what was gonna happen, and I'm still very much in the recovery process."