Being one of the youngest idols who debuted, Teen Top Changjo must be overwhelmed and satisfied enough to confidently reveal a portrait of him from the past.

He proudly shared a photo of him on his twitter account and wrote, "Memories .. One more time ..". In the photo, Teen Top's maknae is holding a portrait of him wherein he was still having his chubby cheeks from their early days of promotion. Because of hardwork, he was able to get rid of those and is able to get more prominent facial features.

Even Teen Top members agreed that Changjo is the one who changed the most.
Don't you agree?

Source: Changjo's twitter