According to Ultra's Facebook
On Monday October 15, we will announce something so big, so crazy, so intense that it will knock you off your seats and leave you thinking "WTF"! We're gearing up to make global EDM history, and do something that NO electronic music festival has EVER done.
All will be revealed in an exclusive video, released here on Monday.
Start guessing and Stay Connected...
Also, tickets on sale next Wednesday.