master of caps: Gongchan
This guy seriously wore billions of caps through this music video XD These are only the ones I found right away ~ but then on the other hand, B1A4 are promotional models for online shopping mall Hatson, so this explains a lot. Especially when you realize that all the buy links are from them. Anyways! Gongchan wore A LOT of caps in their new Beautiful Target (Japanese version) PV and here are a few of them.
get the first one here (light blue)
the second one here (red)
and the third one here (black)
all on Hatson! XD
credits: Hatson, WM Entertainment, Pony Canyon