R3HAB and Korolova have officially released their highly anticipated collaborative single, ‘Hi Hello’. The track, which had been circulating in DJ sets for months, found its defining moment on the Tomorrowland MainStage this past summer.
The production masterfully contrasts a sweet, almost ethereal female vocal with a synth-driven, festival-ready drop—a signature aesthetic that bridges the gap between big room energy and melodic house. While the track had been building momentum in underground sets, its popularity surged after R3HAB invited Korolova to join him during his back-to-back performance with Afrojack at Tomorrowland 2026. The live premiere in front of the massive crowd in Boom, Belgium, solidified the song as a standout anthem of the festival season.
Footage of the performance quickly spread across platforms like 1001tracklists, fueling fan demand for an official release. The track opens with a delicate, stripped-back vocal arrangement before transitioning into a powerful, heavy synth buildup designed specifically for large-scale festival environments.
“Working with R3HAB on this track was all about bringing our combined energy to the dancefloor,” Korolova remarked. “Premiering it together at Tomorrowland this year was a real highlight, and I’ve been playing it all summer. It’s one of those tracks that gets an immediate reaction from the crowd, and I can’t wait to finally share it with everyone.”
R3HAB echoed these sentiments, highlighting the synergy of the collaboration. “Korolova and I have been perfecting this record all year, and we’re very happy to finally release it,” he stated. “Partnering with Tomorrowland Music feels fitting as Korolova joined my B2B with Afrojack to share the song with the MainStage audience. The moment was electric, and the song has quickly become a fan favorite. The wait is now over, enjoy!”
With a career spanning over fifteen years, R3HAB continues to shape the global dance music landscape, boasting over 13 billion streams and consistent rankings in the DJ Mag Top 20. Similarly, Korolova has cemented her status as a powerhouse in the melodic house and techno scene, with significant growth in her streaming numbers and a climb to No. 36 on the DJ Mag Top 100 list in 2024.
‘Hi Hello’ serves as a perfect synthesis of these two distinct styles, proving that the most effective festival records are often those that have already been road-tested and validated by live audiences.
