 In addition, some Kouji performers may also choose to imitate the singing voice of a particular recording artist to display the extent of their vocal mimicry skills.Although Kouji is believed by many to have origins in the animal calls used by hunters in tribal society, there are unfortunately no historical accounts of its transition from such a context into a performance art.The first historical account of Kouji ever recorded was over 2,300 years ago in Shandong province during the Warring States period.