As of now, it's unclear right what's wrong with Avicii. We just know that his show at The SLS tonight is cancelled because he is in the hospital.
Sources in Miami say just a couple of hours ago Avicii was fully expected to perform -- so it appears the problem was sudden.
Avicii's SLS gig -- a warm up for this weekend's Ultra Music Festival -- was so highly anticipated, the hotel was re-branded with his name.
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