I just found a hilarious video on johnnys_wa_ai. First i saw this was an imitation by Aiba chan (HEY!x3 2007.09.03 telephone box), and then half an imitation by Nakatsu (Hanakimi ep 10).

I'm talking about the comedian 小島よしお (Kojima Yoshio). It was a bit embarrassing to watch at first >//< but when the laughing kicked in everything else went out !!!
Ah, in this video you can see KAT-TUN's Nakamaru kun and Tanaka kun (Tanaka kun literally ROTFLing), as well as some Johnny's Juniors (I spotted smn from ABC and I think KMF2).

Edit: embedding from veoh cuz youtube removed the video. Kojima Yoshio in YOUtachi! 2007.07.22

( sonna no kankei nai! hai, o ppa ppi! )

I got this from Arashirin @Vox. I laughed so much while watching it!

About the show: The rules of the game are that you do not laugh while watching the video of the guy trying his best to speak in English. In the show, the people who laugh would have their names called up and have their butt spanked for it.

( Highschool English Lesson video this way )

knowing that there was sth hilarious in there, I was laughing even before the guy started talking XD