Justin Bieber has just revealed the reason behind the postponing of his anticipated tour dates. The 28-year-old singer took to Instagram on the weekend, sharing a video that revealed he had been diagnosed with Ramsay Hunt Syndrome which can cause partial facial paralysis. Bieber went on to explain that he would (obviously) not be able to perform while suffering the side effects of Ramsay Hunt Syndrome.

“Obviously, as you can probably see from my face, I have this syndrome called Ramsay Hunt Syndrome, and it is from this virus that attacks the nerve in my ear and my facial nerves and has caused my face to have paralysis,” Bieber says in the footage.

“As you can see, this eye is not blinking. I can’t smile with this side of my face, this nostril will not move, so there is full paralysis in this side of my face.”

According to medical journals, Ramsay Hunt Syndrome occurs when a shingles outbreak affects the facial nerve near one of your ears. On top of what can be a painful rash, it can also cause the kind of facial paralysis that Bieber is suffering as well as hearing loss inside the affected ear. It’s also believed to be closely related to the same virus that causes chicken pox. Ramsay Hunt Syndrome is uncommon among children and young adults, traditionally being more prevalent in older people.

Treatment is traditionally preventative via the chicken pox vaccination. Older adults are recommended to get vaccinated against shingles.

We wish Bieber a full recovery!