Lee Si Ahn from 'Superman is Back' celebrated his 3rd birthday on November 14. Adorable photos from his birthday party were shared on his mom's Instagram. Baby Daebak, along with his twin sisters posed together for the camera. 

이뿌니들♡

A post shared by Sujin☆오남매맘 (@jeshia2) on Nov 14, 2017 at 1:46am PST

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#3번째생일 #추카추카 #행복가득시아니 #또봇케잌 모두모두 #고맙습니다

A post shared by Sujin☆오남매맘 (@jeshia2) on Nov 14, 2017 at 1:21am PST

Happy Birthday!