Avicii Cancels Ultra Appearance, Needs Gallbladder Surgery

24-year-old DJ is replaced by deadmau5 as he treats a blocked gallbladder.

After a sudden hospitalization forced him to miss a show in Miami show on Thursday night, Avicii has canceled his gig at the city's Ultra Music Festival this weekend to possibly undergo gallbladder surgery.

"I'm very sad to inform everyone that i, due to hospitalization, need to cancel my set on Ultra Miami this Saturday," Avicii wrote on his Facebook page on Friday (March 28). Deadmau5 is being kind enough to step up and I'm very sorry to let everyone down. Much love."

The Swedish DJ, born Tim Bergling, was rushed to a Miami Beach hospital on Thursday for abdominal pains, nausea and fever, and was later diagnosed with a blocked gall bladder. His rep said he is "currently being evaluated for a potential surgery to remove his gall bladder."

"I was with Tim at the hospital last night and this morning," Avicii's manager Ash Pournouri said. "He was really disappointed that he wasn't able to come to the AVICII Hotel at SLS and perform for all his fans... And of course, ULTRA has been so important to us for so many years, it's a big letdown not being able to play."

In March of last year, the 24-year-old was hospitalized in Australia for six days for acute pancreatitis, but persuaded doctors to postpone his needed gallbladder surgery so he could perform the Future Music Festival.

Avicii was scheduled to headline the Miami-based festival on Saturday, and the festival confirmed that deadmau5 will be taking his place on the main stage.