Justin Bieber has revealed that he has a rare disease that has rendered one side of his face disabled. The Canadian musician announced on Friday that he has been diagnosed with Ramsay Hunt syndrome after canceling a handful of forthcoming gigs due to illness earlier this week. "It's from this virus," the 28-year-old singer explained in an Instagram video, "that targets the nerve in my ear and my facial nerves, causing my face to be paralyzed." "This eye isn't blinking, as you can see." This side of my face is unable to smile. This nostril isn't going anywhere." Watch Full Video What is Ramsay Hunt syndrome, and how does it affect you? Ramsay Hunt syndrome is an uncommon neurological condition that can develop in persons who have had chickenpox before. The dormant varicella-zoster virus can impact the facial nerve and cause facial paralysis and hearing loss if it is reactivated, resulting in shingles. Blisters in the ears or on...