It's this one... I can't seem to find English subs though, sorry... ><''
http://www.youtube.com/watch?v=b2yiLndvd_o

I lol, I notice Key fighting for attention. He does not share his baby~ Minho slapping his hand away HAH.

Jinki's all-- I don't understand, I wasn't even in the commercial...

Tae: GTFO my lap, you cartoons

The blazers look Etude-esque but the subs are Chinese... And it's channel V...

Maybe it's some showcase thing?? Like they did for B.A.P.?? Try that. SHINee-channel V-showcase

Oh it was during étude with Dara on their first commercial their kiss note. Maybe if you look up SHINee étude kiss note interview or something you'll find it ^^