On June 10, pop singer Justin Bieber told fans in a video that he has been diagnosed with Ramsay Hunt Syndrome. Due to this disease, 28-year-old Bieber has been facing partial facial paralysis. Recently, Bieber announced that he was pausing his Justice World Tour due to illness, just hours before his first slated concert in Toronto. Bieber said he was doing facial exercises. Reportedly, Ramsay Hunt Syndrome is a rare neurological disorder caused by the varicella zoster virus, the same virus that causes chickenpox in children and herpes zoster. Watch the video to know more about the disease.