A cultural touchstone in the dance music landscape, Tomorrowland is renowned for its extraordinary production values, immersive experiences and global influence. With larger-than-life stage design and a fantastical amusement park ambiance—and hundreds of thousands of fans who travel from all over the world each July—the Belgian behemoth far surpasses conventional music festivals. In many ways, it’s a world in itself. Over the past two decades, Tomorrowland has featured a spectrum of DJs and producers: techno powerhouses, EDM icons, underground experimentalists and more. This playlist—which features early-aughts trance heroes like Armin van Buuren and next-generation superstars like Fred again..—is a celebration of the festival’s history and a glimpse at its future.