On May 21st JYJ's Jaejoong revealed a childhood photo of himself via Twitter.

Jaejoong attached the above photo and wrote, "I wore a hanbok even then".

In the photo, Jaejoong is wearing a red hanbok with a gold crown with his cheeks are adorably puffed as he is about to blow out the candles in front of him.

Followers who saw Jaejoong's photo commented, "Jaejoong's childhood photo is totally cute" and "Jaejoong was a king even when he was little, the hanbok looks good on him".

Furthermore, Jaejoong's childhood photo in his hanbok is reflective of the outfits he will be wearing in MBC's 'Time Slip Dr. Jin' which airs it's first episode on May 26th.

Source: Jaejoong's Twitter