Japanese Game Show "Sing What Happens" Is Misnamed

It appears that "Sing What Happens" loosely translates to "The Handjob Competition."  I have a lot of questions about the game, none of which can be answered quickly or in English.  I don't know if the contestants have to be totally random off the street.  I don't know if the loser has to finish or gets blue balls.  I don't know why the dudes have to stare at each other, but it's a nice twist.  Either way, any video that allows me to bring back my favorite Japanese game show of all time is worth the blog.