Jennifer Garner, Gwen Stefani And More Stars React To Celine Dion's Rare Diagnosis

Celebrities are expressing their support for Celine Dion after the singer announced that she is suffering from a rare neurological disorder.

The "My Heart Will Go On" singer took to Instagram Thursday to reveal that she was diagnosed with stiff-person syndrome and would be postponing her upcoming concert dates.

Jennifer Garner, Gwen Stefani and more stars immediately sent their love to Dion in the comments section of her post, People reported.

The "13 Going on 30" star called Dion "the most beloved woman," adding: "Please take care of yourself, we will all be waiting for you xxx."

"We love you, Celine," Stefani wrote.

"We absolutely love you! You are the reason I sing & the inspiration for so much. The world will wait," singer Katharine McPhee said to her idol.

Donatella Versace told Dion that she was "thinking" of her and "sending you all my love."

"You are talent personified and, as you get better, your power and presence will be felt everywhere again. Wishing you the speediest recovery," the fashion designer added.

"All my love, Celine," Bryan Adams wrote, while Kate Hudson commented, "Love you, Celine."

Selma Blair left a short but sweet message for the "It's All Coming Back to Me Now" hitmaker as well, writing, "We all love you so much."

Other stars who sent her well-wishes included Kristin Chenoweth, Brandi Carlile, Megan McKenna, Jonathan Van Ness, Drew Scott, Jennifer Hudson, Diane Warren and Tanya Tucker.

In a video shared Thursday, Dion got emotional as she spoke about her health battle.

"I've been dealing with problems with my health for a long time, and it's been really difficult for me to face these challenges and to talk about everything that I've been going through," the 54-year-old singer wrote in the caption of the post. "It hurts me to tell you that I won't be ready to restart my tour in Europe in February."

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A post shared by Céline Dion (@celinedion)

She added, in the video, "Recently, I've been diagnosed with a very rare neurological condition called stiff-person syndrome, which affects something like one in a million people. While we're still learning about this rare condition, we now know that this is what has been causing all of the spasms that I've been having."

Dion tearfully explained that the spasms "affect every aspect of my daily life, sometimes causing difficulties when I walk and not allowing me to use my vocal cords to sing the way I'm used to."

"Stiff-man syndrome" — also known as "Moersch-Woltman syndrome" — "is a rare disorder of motor function characterized by involuntary stiffness of axial muscles and superimposed painful muscle spasms, which are often induced by startle or emotional stimuli," according to the Mayo Clinic.

Due to her condition, Dion decided to move her spring 2023 shows to spring 2024 and cancel eight of her summer 2023 shows.