 His songs mainly feature vocals and acoustic guitar played over hip hop beats and his sound has been compared to that of musician Everlast.Although he experimented with rapping early in his music career, he has stated in an interview that he wasn't impressed by his own rapping ability and has focused his vocal efforts on singing.KO is a fan of Nirvana and has cited Kurt Cobain as a musical influence — "Kurt Kobain" is also the title of a single from his debut album.