Céline Dion Compares Singing With Stiff Person Syndrome to Being Strangled

Céline Dion opens up about her ongoing battle with Stiff Person Syndrome in a sneak peek of NBC News' sit-down interview, airing June 11 at 10 p.m. ET/PT. The songstress compares singing with the rare neurological disorder to the feeling of 'somebody strangling you.'