Actor Yoon Si Yoon's pre debut photos have been a hot issue amongst the netizens recently. The photos, pictured below, are from the past when Yoon Si Yoon was a fitting model for a shopping mall. In the photos, he looks more younger as he showcases his slim and tall body. Furthermore, Yoon Si Yoon in the past made an appearance in MBC's Introducing a Star's Friend as Lee Hong Ki of FT Island's friend. He also has been a hot issue back then due to his similar looks with actor Lee Junki. Netizens who have seen the photos commented, "He looked handsome back then as well," "He looks the same," "He has a innocent yet sexy image" and "Is it really pre-debut? It looks like a photo shoot." Meanwhile Yoon Si Yoon is currently starring in KBS's King of Bakery.