"I recently underwent an operation to remove something that, as it turns out, was cancerous," she shares on social media. "The operation was successful & I'm feeling great but my doctors are now advising me to undergo a course of preventative chemotherapy and & I've decided to do it."
Earlier this year, Heart announced they were postponing their European Royal Flush tour in order for Ann to have what they called “a time-sensitive but routine medical procedure.” They’ve now postponed the rest of the tour.
In a separate post, Heart encouraged fans to hold on to their tickets, which will be valid for future rescheduled dates.