Back in September, she became ill and and had to reschedule all her concert dates. Now, she's been forced to cancel all those rescheduled dates because she still hasn't made a full recovery.
"I am totally devastated. Nothing like this has ever happened to me," Cher said in a statement. "I cannot apologize enough to all the fans who bought tickets. I’m so proud of this show. It is my best ever. I sincerely hope that we can come back again next year and finish what we started."
Ticket holders can get refunds at the point of purchase.
The dates were to have run through January, and included two shows at New York City's famed Madison Square Garden.