Celine Dion's sister gives an update on the singer's stiff-person syndrome battle and says hope 'is important'

Celine Dion's loved ones are rallying for the global superstar as she lives with stiff-person syndrome, a rare neurological disorder.

Months after the "My Heart Will Go On" singer called off her , her about the Grammy Award-winning artist's time away from the stage. In the July interview, Claudette said the singer is "working hard."