JYJ has just released a making-of video for promotional single “Only One”, showing off their bright charms to fans.

On October 7th, the 2014 Incheon Asian Games official Youtube uploaded new video featuring behind-the-scenes footage of JYJ members from their rehearsal, music video filming, recording and photo shoot.

JYJ has been recently appointed as honorary ambassadors for the ‘2014 Incheon Asian Games’ and they recorded the event’s theme song “Only One”. The song was produced by hit songwriter Sweetunes in a simple style for all the Asians to enjoy together.

Watch the video below. You can also check out the MV here.