Celine Dion Closes Opening Ceremony With Triumphant Return to Stage. It was the first public performance since 2020 for Dion, who has a rare neurological disorder known as stiff person syndrome.

“Well, Celine, my beautiful sister, you make my heart go on and on, near far, you’re a total superstar,” he said. “Let’s hear it for the legendary Celine Dion.