TomorrowWorld is returning to Chattahoochee Hills, Georgia for its third year in the U.S.. Two incredibly successful years have landed the festival amongst the best and most-anticipated festivals in the country. Now, as they gear up for year three, they have released the day-by-day lineups for the festival's headliners, which includes TiestoSteve AngelloHardwellMartin Garrix and more. Check out the schedule above.

Also featured on this year's lineup is Sam Feldt, who has just delivered an exclusive mix in anticipation of TomorrowWorld, which you can listen to below. Purchase your tickets at the official TomorrowWorld website, and stay tuned to Elektro for all your Tomorrowworld 2015 news and updates.