The Six-Octave Man" Dimash Kudaibergen Wows on CBS's 'The World’s Best In week two of CBS's 'The World’s Best', viewers were introduced to Dimash Kudaibergen from Kazakhstan, a 25-year-old with a stunning six-octave vocal range. Making his American debut, Dimash, often referred to as "The Six-Octave Man," impressed everyone with his incredible voice and range.