OTK is a Czech band playing a mixture of alternatives, raw rock and noise. Founded in Prague in 1988, in its beginnings the band was both personally and musically close to Tata Bojs, with whom they regularly held annual concerts. During its tenure, OTK released four albums, numerous compilations and also a remix album of the song Klan. OTK is artistically spearheaded by Ondřej Ježek, who also produces his own music independently. The band is one of the main pillars of the label Silver Rocket and often performs at events and mini-festivals organized by this label.