This is Déjà vu for Avicii as he had to give up his headlining spot in one of his favorite cities at Ultra 2014 in Miami due to an urgent surgery to get his gall bladder removed. Surgeons had also removed his appendix simultaneously and Deadmau5 took his spot at Ultra where many fans were sad to hear the breaking news just as fans are now. This is the same reason why Avicii must give up the rest of his tour is to gain a full recovery from his operation in March.
Avicii didn’t look too great in a recent photo and it can be understanding why he needed to cancel. This official statement was released to announce the sad news: