Insomniac has debuted a complete overhaul of its celebratory year's end festival,  Countdown New Year's Eve. Having tested out a two-day format for 2016 and 2017, the event is reverting back to a single-day bash and will take place on December 31st, 2018, returning to the NOS Events Center in San Bernardino.

photo: Insomniac Events.

Along with the change of dates, the festival has introduced an out-of-this-world theme intended to immerse you in an alien invasion setting. The thematic enhancements include four new stage designs The MothershipThe NebulaArea 51 (hosted by Bassrush), and the Twilight Zone (house music).

photo: Insomniac Events.

Insomniac has yet to release the full lineup, but previous headliners include Deadmau5, Seven Lions, Zedd, and Alesso amongst many other big names in the genre.

Tickets for the 18+ event go on sale Friday, November 2nd at 10 AM PT. Visit CountdownNYE.com for tickets, pricing, and general info.