After School's Kahi recently revealed how she maintains her nice abs! On March 3rd, SBS's "One Night of TV Entertainment" looked into the star method of obtaining the 'ultimate body', and they used Kahi as an example of perfect abs. During the interview portion of the feature, Kahi revealed her methods on having nice abs, "I work out focusing more on my waist and bottom rather than on my abs. By doing so, the abs will shape nicely." While introducing Kahi though, "One Night of TV Entertainment" made the mistake of putting the subtitle of "Ga In" instead of "Kahi", leaving fans disappointed over the identification error. Who do you think has the best abs in the biz? Source: Newsen via Yahoo! Korea