On Mnet's 'Beatles Code 3D', singer Park Ji Yoon denied undergoing any procedure to enhance her looks.

MC Shin Dong Yup said, "There's absolutely no difference between your graduation picture from school and your current self. Did you not get anything done?"�She responded, "I didn't at all. I didn't even have botox or similar procedures done."

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Shin Dong Yup joked, "How about somewhere besides your face? Did you do it on your body?" Park Ji Yoon�also named the five "ulzzangs" of Gangnam during her school days, naming herself, Jun Ji Hyun, Lee Min Jung, Seo Ji Young, and Song Hye Gyo. �