R3HAB and Korolova have officially released their collaborative single “Hi Hello” through Tomorrowland Music. First premiered together on Tomorrowland’s MainStage in Boom, Belgium, the track combines melodic elements with powerful, festival-ready electronic production.
The collaboration brings together R3HAB’s experience in mainstage dance music and Korolova’s melodic house and techno influences. After being introduced to Tomorrowland audiences during the summer, “Hi Hello” is now available on streaming platforms.
R3HAB and Korolova Premiere “Hi Hello” at Tomorrowland 2026
The story behind “Hi Hello” began at Tomorrowland 2026 in Boom, Belgium, where R3HAB was performing a back-to-back set with Afrojack on the festival’s MainStage.
During the performance, R3HAB invited Korolova to join them for the track’s joint live premiere.
The moment introduced the collaboration to the MainStage audience months before its official release. Footage from the performance subsequently circulated across 1001Tracklists and other electronic music channels.
The track had already appeared in DJ sets before the festival performance, but the joint appearance at Tomorrowland provided a particularly prominent introduction.
Both producers have since reflected on the collaboration and the response it received throughout the summer.
Korolova described the project as an opportunity to combine their musical energies, while R3HAB explained that the pair had spent the year refining the production ahead of its release.
From MainStage Premiere to Official Release
Following the Tomorrowland performance, “Hi Hello” continued appearing in live sets as audiences became more familiar with the production.
The collaboration’s progression from festival premiere to commercial release highlights the connection between the two artists’ studio work and live performances.
For R3HAB and Korolova releasing the track through Tomorrowland Music also connects the single directly to the festival where it was introduced alongside Korolova..
“Hi Hello” Combines Melodic Vocals and Powerful Synth Production
R3HAB and Korolova “Hi Hello” begins with a delicate female vocal before developing into a more energetic arrangement.
The opening section establishes the melodic atmosphere, introducing listeners to the softer elements of the production before transitioning toward a stronger electronic sound.
As the track progresses, an increasingly prominent synthesizer buildup creates tension ahead of its main drop.
The arrangement combines these contrasting elements, balancing the melodic characteristics associated with Korolova’s productions with the mainstage energy of R3HAB’s sound.
Rather than focusing exclusively on one aspect of electronic music, the collaboration incorporates both artists’ influences within a single production.
Melodic House & Techno Influences
The combination of vocals, synthesizers, and rhythmic intensity also reflects the crossover between melodic club music and large-scale festival performances.
For listeners familiar with either producer’s catalog, the collaboration introduces elements associated with both artists without departing from the track’s melodic direction.
R3HAB Brings Years of Dance Music Experience
R3HAB has spent more than fifteen years establishing himself within the international electronic dance music industry.
The Dutch-Moroccan DJ and producer has worked across multiple areas of dance music, building a catalog that includes original productions, remixes, and collaborations.
According to his official press biography, his catalog has accumulated more than 13 billion streams, alongside over 130 Diamond, Platinum, and Gold certifications.
His past collaborations include projects involving Ava Max, ZAYN, and Jason Derulo, demonstrating his work across electronic music and mainstream pop.
R3HAB has also maintained a presence in DJ Mag’s Top 20 rankings since 2017, according to the promotional materials accompanying “Hi Hello.”
His participation in the new release brings that experience to a collaboration centered on melodic production and large-scale festival energy.
Korolova Continues Her Rise in Melodic House & Techno
Ukrainian DJ and producer Korolova has established a growing international presence through her melodic house and techno releases and performances.
According to Tomorrowland Music’s press materials, she has surpassed 170 million YouTube views and 70 million audio streams.
Her career has also included appearances at major electronic music events, including performances on Tomorrowland’s MainStage.
Korolova entered DJ Mag’s Top 100 DJs ranking at No. 60 in 2024 and has since climbed to No. 36, according to the October 2026 press announcement.
In addition to her touring and production work, she operates her own record label, Captive Soul.
Through the imprint, Korolova has released music reflecting her approach to melodic electronic production while continuing to collaborate with other artists.
“Hi Hello” adds another international collaboration to her catalog, connecting her established melodic sound with R3HAB’s festival-focused production.
R3HAB and Korolova “Hi Hello” Is Out Now
R3HAB and Korolova Following its MainStage introduction at Tomorrowland 2026, “Hi Hello” is officially available through Tomorrowland Music.
The collaboration combines R3HAB’s experience in festival-oriented dance music with Korolova’s melodic house and techno influences.
From its restrained vocal introduction to its synthesizer-driven buildup and drop, the single brings together musical elements associated with both producers.
Released October 23, 2026, “Hi Hello” marks a collaboration that first reached audiences during one of the year’s largest electronic music festivals before arriving on streaming services.