On Saturday he underwent surgery and told fans after the procedure, "Turns out I had a ruptured appendix on top of my sick gallbladder�both were removed during the operation. Now I feel like s*** but at least I'm on the road to recovery."

Prior to the surgery he tweeted fans, "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!"

On Friday he told fans in a series of tweets, "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."