The world’s 3rd best festival returns: UNTOLD 2026 ushers in a new era with the first artist lineup confirmed for UNTOLD ONE.
Leading the initial announcement are world-renowned artists such as Martin Garrix, The Chainsmokers, Kygo, Sebastian Ingrosso, Lost Frequencies, MËSTIZA, Steve Aoki, Marshmello, Afrojack b2b R3HAB, alongside live acts including Flo Rida, Swae Lee, and Tash Sultana, with more names still to come.
Taking place from August 6–9, 2026, UNTOLD ONE will once again transform Cluj-Napoca, Romania, into a global epicenter of music, love, energy, and connection.
Set in the heart of Transylvania, the festival promises legendary shows and immersive experiences designed to transcend boundaries, leave a lasting impact, and create moments that truly change those who attend.
The UNTOLD ONE concept signals the beginning of a brand-new era for the festival, ushering in a new decade following UNTOLD’s 10th anniversary in 2025.
This next chapter brings together an eclectic mix of world-class DJs, producers, and live performers, paired with spectacular production, groundbreaking premieres, and unforgettable comebacks from artists who have shaped multiple generations of sound.
Electronic music takes center stage with some of the most influential names in the world. The Chainsmokers, Grammy Award-winning hitmakers behind one of the most-streamed songs of all time, “Closer” (over 3.5 billion streams), continue to blur the lines between pop and electronic music.
Known for global anthems like “Something Just Like This” and “Don’t Let Me Down,” the duo returns to UNTOLD ONE after their memorable mainstage debut in 2018.
Joining them is Kygo, the trailblazer of tropical house and one of the fastest-rising artists in dance music history. With billions of streams to his name, including “Firestone” and “It Ain’t Me,” both surpassing 3 billion global streams, Kygo is set to bring his signature sound back to Transylvania.
Lost Frequencies, one of Europe’s most successful artists of the past decade, also makes a powerful return. His melodic house style has dominated charts worldwide with tracks like “Where Are You Now” (1.6 billion streams) and “Are You With Me” (over 1.3 billion streams). After closing the mainstage in 2022 and delivering a standout show in 2024, he returns once again to UNTOLD ONE.
Martin Garrix, one of the most influential figures, returns to the UNTOLD mainstage with a show built around decade-defining hits such as “Scared To Be Lonely” and “In the Name of Love”, each surpassing 1.5 billion streams.
Ranked No. 1 five times in the DJ Mag Top 100 DJs, a record achievement, and 2nd in 2025, Martin Garrix confirms his status as an electronic music superstar and headliner of the world’s biggest festivals. He played an exclusive set at the 10th anniversary of UNTOLD festival in 2025 and is ready to write history once again this summer.
Marshmello is one of the few DJs dominating both electronic and pop charts simultaneously. With over 50 million monthly listeners and tracks like “Happier”, which has surpassed 2.5 billion streams, Marshmello is a global phenomenon. His virtual concert in Fortnite, watched by millions, remains one of the most innovative moments in recent live music history.
Sebastian Ingrosso, Steve Aoki, Afrojack B2B R3HAB and MËSTIZA round out the first wave of announced DJs.
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Live music remains a cornerstone of the UNTOLD experience. Flo Rida, one of the most successful artists in pop-rap history, is set to deliver an iconic performance. With more than 80 million records sold worldwide and billion-stream hits like “Low” and “Good Feeling,” Flo Rida has reshaped mainstream urban music and remains a constant presence on global charts and festival stages.
Also joining the lineup is Swae Lee, one of the defining voices of the modern hip-hop and pop era. His collaboration with Post Malone, “Sunflower,” has surpassed 4.1 billion streams on Spotify, making it one of the platform’s most-streamed tracks ever and solidifying his influence on contemporary mainstream music.
In total, over 200 artists and more than 470,000 fans from around the world are expected to unite at UNTOLD 2026 for a four-day celebration of music, energy, love, and connection in the heart of Romania. Additional artist announcements will be revealed soon.
Festival passes are available now.
