Armin Van Buuren at TomorrowWorld Electronic Music Festival on September 29, 2013 in Fairburn, Georgia.

TomorrowWorld today (June 30) announced its Phase Two headliners, adding 17 new artists to its 2015 edition.

Newly announced headliners include Kaskade, Bassnectar, Porter Robinson and the Chainsmokers. They will join 18 previously announced festival headliners that include David Guetta, Tiësto and Martin Garrix.

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“I’m excited to return to TomorrowWorld for the second year in a row," says Kaskade. "The undeniable energy and unique grounds make it a one-of-a-kind experience.”

TomorrowWorld 2015 will be held from Sept. 25-27 in Chattahoochee Hills, Ga. Last year's festival drew 160,000 fans from more than 75 countries.

Exclusive: TomorrowWorld Reveals 2015 Musical Curators, New Stages

Tier 2 Dreamville camping tickets and general admission single and three-day passes are available here.

TomorrowWorld Phase One and Two Headliners: