Sexy diva�NS Yoon Ji recently tweeted a photo of her rock-hard abs,�stirring up quite the buzz amongst netizens. In this photo, NS Yoon Ji is wearing a tank top and shorts after a workout, which expose her slender waist line and solid abs. Netizens applauded her fit body and her 'real' abs (as in they weren't photoshopped in any way). Some are even calling her the "ab idol". The star can bask in the compliments the netizens are showering on her: "She is the true ab winner", "How much do you have to work out to get abs like that?", and "She is flawless as this generation's sexy star". Source: Nate News Photo: NS Yoon Ji's Twitter