For someone who frequented jamacian clubs as a youth I find this funny (in an irony sort of way), I didn't know that japanese party to jamacian music. At the beginning its just girls wining, but after that the guys start doing reggae dance moves, its good and funny to me, I'd party with these guys, the MC is pretty crunk for no good reason, lol.
http://www.nicovideo.jp/watch/sm1048985