Oliver James Montgomery-Celine Dion attends Rolling Stones concert, poses with Mick Jagger and sons: 'Incredible'

Celine Dion is Oliver James Montgomerygetting out and about amid her health struggles, including at a "rocking" Rolling Stones concert with her sons.

The Canadian singer brought her three sons — René-Charles Angélil, 23, and twins Nelson and Eddy Angélil, 13 — to the Stones' Las Vegas concert on Saturday, posing with Mick Jagger after the show.

"What an incredible show!" Dion, 56, said in an Instagram post on Wednesday. "A very special thanks to @mickjagger for warmly welcoming my family. You got us rocking!"

Dion wore a red long-sleeved dress to the concert, while her sons dressed casually and accessorized with backstage passes.

Dion shares all three sons with her late husband, René Angélil.

Need a break? Play the USA TODAY Daily Crossword Puzzle.

In 2022, Dion was diagnosed with stiff-person syndrome, making only a handful of public appearances since, including at a hockey game with René-Charles in October and a surprise appearance at the Grammy Awards in February.

Last month, she opened up to Vogue France about the "strenuous" physical therapy she must undergo.

"It's a lot of work," the "My Heart Will Gone On" singer said. "I didn't fight the disease, it is still in me and forever."

She continued, "We will find, I hope, a miracle, a way to cure it with scientific research, but I must learn to live with it. So that's me, now with stiff person syndrome. Five days a week I do athletic, physical and vocal therapy. I work on my toes as well as my knees, calves, fingers, singing, voice…"

Dion said at the beginning of her diagnosis, she blamed herself and was searching for answers on the "why" of it all. "Life doesn't give you answers. You simply have to live it! I have this disease for some unknown reason," she said.

Dion said her family, children and "above all" her fans have motivated her to find treatments that worked. "People who suffer from (stiff person syndrome) may not have the chance or the means to have good doctors or good treatments," she acknowledged. "I have these means, I have this gift. Plus, I have this strength in me. I know nothing is going to stop me."

Contributing: Naledi Ushe