Sorry to inform that the first 2 videos are no longer available.
The videos have been taken away by KBS America due to copyright.
Be quick in watching, before all the videos taken away by the production!!!
HyunJoong on HJK radio on (9/2/2009) Part 1
HyunJoong on HJK radio on (9/2/2009) Part 2
I think they were filming this CF.
Totally worth hearing & watching. It was so funny. ^^