March 28, 2014 7:00 pm Avicii Cancels At Ultra Music Festival Superstar DJ Avicii has canceled his headlining performance at Ultra Music Festival this weekend due to health issues, Ultra tweeted. US & World Videos 2:18 FIU awards posthumous degree to victim of CityPlace Doral shooting 0:44 Bicyclist killed by driver fleeing from deputies: BSO 1:59 Huge yacht goes up in flames on Miami River 0:29 Ten people shot at Sanford bar, teen in custody 1:18 Man seriously injured in Lauderdale Lakes shooting