Avicii has been forced to cancell his appearance at Ultra Music Festival on Saturday due to a blocked gallbladder that could require surgery.

Avicii Cancels Ultra Show

In addition to canceling his Ultra stop, the electronic dance music DJ has also been forced to opt out of a string of other performances he was scheduled for in Miami, reported Billboard. Replacing him at Ultra, will be Deadmau5.

"[Avicii] has been diagnosed as having a blocked gall bladder, and is currently being evaluated for a potential surgery to remove his gall bladder,” the Swedish DJ’s publicist stated Friday night. “He has had to cancel all his commitments for the week, including a highly anticipated performance last night at the Ushuaia Pop Up at the Avicii Hotel at SLS and his headline performance tomorrow at the ULTRA Music Festival."

Avicii Explains Medical Troubles

Avicii personally broke the news to fans on his official Facebook page, offering both an apology and an explanation for his necessary cancellations.

“I'm really sorry but as some of you have already heard, i will not be playing Ultra Festival this Weekend,” Avicii wrote. “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 [Thursday] afternoon and I returned to the hospital where they admitted me to stay overnight,” he added. “My doctors have decided to operate and remove my gall bladder [Saturday] morning.”

Avicii is hopeful that he’ll have fully recovered from his gallbladder surgery in time for his US True Tour. The tour is scheduled to kick off Thursday, April 10 at the TD Garden in Boston.

– Chelsea Regan