
KEEP UNDERGROUND POD ZEMÍ vol. 2
Multi-genre festival featuring hip-hop, metal, jazz and live poetry with Hopsen Clark & Vivace Soundsystem, Bound to Break, Future3 and Influs.
Hopsen Clark is the stage name of Brno-based rapper Viktor Krejčíř, active since 2021. His 2026 album Sprej Času, made with drummer and producer Šimon Stejskal (Vivace Soundsystem), marks their first full collaboration - built on live drums, vinyl samples, and a genre mix spanning hip-hop, jazz, drum & bass and breakcore. Vivace also plays in the band Protožes to Chtěla.
Hopsen Clark presented the album Sprej Času on March 19, 2026 at the Kabinetu Múz in Brno with the participation of drummer Vivace Soundsystem, rapper Mc Kukina and singer Protožes To Chtěla.
In an interview for Stisk.online, the duo described that Sprej Času was created exclusively from loops of vinyl records purchased in Brno and live drums - a fundamental change in approach compared to previous albums.
The album Sprej Času and the single Nefertiti (feat. Vivace Soundsystem) were released in February 2026 on streaming platforms.
The duo performed on March 26, 2026 at Klubovně Dejvice in Prague as part of the tour for the album Sprej Času.

A two-part evening featuring Lil Fault and Stříbrný Rafael for an EP release show, followed by a set from Hopsen Clark & Vivace Soundsystem.

Late-night music festival under the brewery featuring guitar music, hip-hop with live drums, and electronic sounds. Diverse lineup from evening into the early morning.