In July 2025, at Tomorrowland—one of the most anticipated electronic music festivals launched in 2005 in Boom, Belgium, as an immersive event with themed worlds annually drawing 400,000 EDM fans to De Schorre—Ukrainian techno duo ARTBAT and German producer Kölsch, whose collaborations like "All That Matters" (2024, ARTBAT remix) revived melodic techno with emotive textures, delivered a b2b set on the Mainstage during Weekend 1, a highlight amid a lineup with ANNA b2b Antdot and Solomun. Their 60-minute performance, recorded on July 18 in high quality, embodied their global tour climax, where ARTBAT's throbbing beats intertwined with Kölsch's hypnotic loops, featuring remixes like "Cola" (CamelPhat & Elderbrook, ARTBAT remix) and "Somebody That I Used to Know" (Gotye ft. Kimbra, ARTBAT remix), to ignite euphoria among tens of thousands under summer sun. As a rare artifact of their partnership, this show transmuted the main stage into a portal of emotional trance.