R3HAB and Korolova have released their collaborative single ‘Hi Hello’, a track that was already making the rounds in DJ sets for months before it found its defining moment on the Tomorrowland MainStage this summer.
The track contrasts a sweet, almost innocent-sounding female vocal with a synth-driven festival-ready drop, a combination that has become a signature of big room and melodic house. ‘Hi Hello’ had been floating around in sets for a while, but it took off after R3HAB brought Korolova out during his MainStage back-to-back with Afrojack at Tomorrowland 2026, letting the two play the track together…
