Celine Dion 'No Longer Has Control Over Muscles' Amid Incurable Stiff-Person Syndrome Battle

Legendary Canadian singer Celine Dion no longer has 'control over her muscles,' according to her older sister Claudette.

A year after the My Heart Will Go On hitmaker was forced to cancel her world tour last December, her sibling, 74, suggested that it may be awhile before Celine, 55, returns to the stage following her battle with a neurological disorder called stiff person syndrome.