STAGE PREVIEW: MAINSTAGE – Feel the energy at the magical Mainstage with @afrojack, @alanwalkermusic, @arminvanbuuren, @davidguetta, @dimitrivegasandlikemike, @dondiablo, @katyperry, @kolschofficial, @lostfrequencies, @martingarrix, @nervomusic, @oliverheldens, @iampaulkalkbrenner, @steveaoki, @sunneryjamesryanmarciano, @tiesto, @timmytrumpet and @vintageculture.