W 2019 Kayax wydaje singiel Bengal Tiger wraz z kontrowersyjnym video.
"K-essence creates an atmosphere comparable to the one present in Nick Cave’s, Peter Murphy’s, Mark Lanegan’s and early Bowie’s records yet reaches for uncompromising rock standing astride melancholic-psychedelic indie and gloomy gothic." The man behind K-essence is Bartosz Księżyk, a singer-songwriter and producer, former frontman of the indie-rock act NeLL. K-essence has released two critically acclaimed records: Prince of Pawns, crowdfunded by fans, and We Prefer the Night, played by German Viva and MTV, and gaining enthusiastic reviews from both German and Polish music press.
In 2019 Kayax releases K-essence new single Bengal Tiger complete with a controversial video.