World-renowned superstar Céline Dion continues to struggle with her health, with the artist having announced that she is canceling her entire upcoming world tour.

”I’m so sorry to disappoint all of you once again…,” she wrote on Twitter.

Celine Dion fans first got worrying news last year, after the chart-topping icon announced that she had been diagnosed with a rare neurological disorder.

In an emotional video shared with fans on Instagram, Dion announced that she has a “one in a million” condition called stiff-person syndrome, a progressive nervous system disorder that affects the brain and spinal cord, and can cause painful spasms and limit mobility. The condition is incurable but symptoms can be treated.

Dion’s issues with muscle spasms, which caused her to cancel North American tour dates in January, are known to her many fans.

Unfortunately, it seems that Dion’s health issues are persisting, leading to the announcement of the cancellation of her forthcoming 42-date tour.

On social media, the iconic singer revealed that she has been left devastated by the decision.

”I’m so sorry to disappoint all of you once again… and even though it breaks my heart, it’s best that we cancel everything until I’m really ready to be back on stage… I’m not giving up… and I can’t wait to see you again!” she said.

Dion has kept a low profile since that announcement, but her sister Claudette has provided updates on her condition, expressing optimism.

“I am confident that life will give her back what she gave because she is an extremely intelligent woman, so very generous and talented and in love with life as well,” Claudette said to the Le Journal de Montreal.

“Rather than crying over her fate, I try to send her positive vibes in the hope that one day she will go back on stage.”

Dion’s new health update arrives approximately one month after she recently unveiled a new song. In April, she released an official lyric video for her new hit “Love Again,” the theme song to a film of the same name released on May 12.

The film’s soundtrack features five new songs from Dion, as well as six of her past hits, including “It’s All Coming Back to Me Now.”

Celine Dion has sold more than 200 million records worldwide. Her hit singles include “The Power of Love,” “Because You Loved Me,” “It’s All Coming back to Me Now,” and Titanic theme “My Heart Will Go On.” Her albums Falling into You and Let’s Talk About Love are both diamond-selling records and among the best-selling albums in history.

She has won five Grammy Awards, including Record of the Year and Album of the Year. Her previous concert residency in Las Vegas is the highest-grossing residency in music history.

Celine Dion is truly a one-of-a-kind talent and we wish her all the best ❤️ While she can’t perform concerts right now, we’re glad to see she’s still releasing new music!