HI-LO

HI-LO is the techno alias of Dutch DJ/producer Oliver Heldens, born in Rotterdam on 1 February 1995. The name is a palindrome — "Oli H" reversed — and the project launched in July 2015 as a solo, parallel outlet for harder material than the Heldens-branded future-house catalogue (which by 2015 had already crossed over with "Gecko" and "Koala"). The first HI-LO release, "Renegade Mastah", landed on 20 July 2015 as the catalogue-one debut for Heldens' own newly-launched Heldeep Records — a solo track (often miscredited as a Sander van Doorn collaboration; Heldens-and-van Doorn's "This" is a separate 2014 release under the Heldens main name). HI-LO started in the bass-house / future-house lane but the project's editorial centre of gravity shifted decisively into techno across 2020-2022. The pivot was the collaboration series with Reinier Zonneveld — initiated when Heldens cold-DMed Zonneveld on Instagram with HI-LO demos — which has produced "Saw of Olympus", "Balearic Mornings", "String Theory" (2021), "Samsara" and "Nirvana" (Dec 2022), and "Flying Octopus" across Zonneveld's Filth on Acid imprint and Heldens' own labels. The catalogue has since extended onto mau5trap ("Zeus") and Drumcode ("WANNA GO BANG") — canonical techno-label placements that anchor HI-LO's transition into bona-fide techno. Heldens performs HI-LO as a touring-distinct entity (dark visuals, peak-time techno rooms, Awakenings / ADE / Tomorrowland mainstage runs distinct from Oliver Heldens-branded house sets) and the project routinely shares festival stages with Anyma, Indira Paganotto, Maddix, and the broader techno-trance crossover roster.