The unnamed 25-year-old man from West Bromwich, England reportedly collapsed after complaining of chest pains on the first day of the six-day Snowbombing festival, which is held at the Mayrhofen ski resort.
A spokesperson for Mayrhofen police says, "The man was treated by paramedics but lost consciousness and died."
Snowbombing's organisers add, "We have offered every assistance and our thoughts are with the man's family. His next of kin are being contacted. We cannot comment further at this point."
No further details were known as Wenn went to press.
Other acts performing at the event, which comprises both music and snow sport, include Chase and Status and Rudimental.