Avicii checked in with fans on his Facebook with the following message:
“I’m really sorry but as some of you have already heard, I will not be playing Ultra Festival this weekend.
My fans know that I have had issues in the past with my stomach and pancreatitis… I woke up on Wednesday morning with serious pain but I flew to Miami anyway, hoping that it would go away. The pain was still there when I landed so I went straight to hospital. I was treated and left later that night.
Unfortunately, the pain came back yesterday afternoon and I returned to the hospital where they admitted me to stay overnight.
My doctors have decided to operate and remove my gall bladder tomorrow morning.
It’s a routine procedure and all going well, I expect to be fully recovered and back on my feet in time for my US True Tour.
Thanks for your concern everyone, it means a lot to me!”
– From Avicii