Celine Dion makes first public appearance in years after being diagnosed with Stiff Person Syndrome

Celine Dion has made her first public appearance in years after being diagnosed with rare neurological disorder, Stiff Person Syndrome.

The singer, 55, took her sons René-Charles and twins, Eddy and Nelson, to a hockey game in Las Vegas on Monday to watch the match between the Vegas Golden Knights and the Montreal Canadiens.

After the match, Dion made her way to the locker room, with her team the Montreal Canadiens sharing images and a reel from her visit.

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In a clip, the My Heart Will Go On singer appeared in high spirits, telling players and coaches how nice it was to meet them all.

"Still not coming back from it, iconic," one post from the Montreal Canadiens read.

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Stiff-person syndrome is a rare neurological disorder that affects the nervous system, and specifically the brain and spinal chord.

According to the National Institute of Neurological Disorders and Stroke, symptoms of the disorder can include "extreme muscle stiffness, rigidity and painful spasms in the trunk and limbs, severely impairing mobility.

Dion previously was forced to postpone some tour dates due to her battle with the condition, which she said was affecting her voice.

It doesn't let her "sing the way I'm used to," she previously said.

The music legend made the announcement in a video clip shared to social media, assuring fans she is doing everything she can to keep her symptoms at bay.

"I'm working hard with my sports medicine therapist every day to build back my strength and my ability to perform again," she said. "But I have to admit it's been a struggle."

Celine's late husband, Canadian talent manager and music producer René Angélil sadly passed away in 2016 from throat cancer. He was 73.