PROBASS ∆ HARDI is a Ukrainian group formed in Kremenchuk in 2017 around producer and frontman Artem Tkachenko. They blend Ukrainian folk motifs with EDM, rock, and bass-heavy electronic production, a sound they call ukrobass. Their 2021 single "Доброго вечора, ми з України" ("Good evening, we are from Ukraine") took a greeting first used by DakhaBrakha singer Marko Halanevych and turned it into a rallying cry after Russia's 2022 invasion: millions of views, hundreds of thousands of TikTok clips, and a spot on a Ukrainian postage stamp.
This track pairs them with ТНМК (Tanok na Maidani Kongo), a Kharkiv rap-rock band founded by Oleksandr "Fozzy" Sydorenko and Kostiantyn "Kotia" Zhuikov in the late 1980s and formally active as ТНМК since 1996, when singer Oleg "Fagot" Mykhailiuta joined. ТНМК helped push Ukrainian-language rap into the mainstream with their 1998 debut "Зроби мені хіп-хоп" and the gold-selling "Сила" in 2005, known for rapcore energy and comic stage bits. Both acts have spent much of the time since 2022 on benefit concerts for the Ukrainian military and refugees.