The five-city open-air festival runs Nov. 24 to Dec. 2, and marks the first of the major events of the Australian summer.

The first artist announcement of 50 names included Calvin Harris, Example, Carl Cox, Major Lazer, Laidback Luke, Martin Solveig, Dash Berlin, Markus Schulz and Diplo.

This year Stereosonic is moving back to the 25,000-capacity Skoda Stadium in Sydney (last year it set a new festival record for Sydney by drawing 60,000),

In other changes, it has switched ticketing to Ticketmaster, and added two new stages. In 2011, Stereosonic sold out eight weeks in advance.