Celine Dion has announced the cancellation of 14 shows at the Colosseum at Caesars Palace scheduled for March 27 through April 18 due to a middle-ear condition known as patulous eustachian tube. According to a post on her Facebook account, the condition causes hearing irregularities and makes it difficult for the 49-year-old performer to sing.

“My luck hasn’t been very good lately... I’ve been so looking forward to doing my shows again and this happens…. I just can’t believe it," Dion said in the statement. "I apologize to everyone who planned to travel to Las Vegas to see my show. I know how disappointing this is, and I’m so sorry."

She has been dealing with the condition for the past 12 to 18 months and is set to undergo a minimally invasive surgical procedure to correct the problem. Dion is scheduled to return to her residency at the Colosseum on May 22. Ticket purchases will be refunded to the credit card used, or those who purchased tickets with cash may return them at the original point of sale for a refund.