Changmin's face is awesome.  And that back-up dancer in the back.  And I just noticed that their sunglasses have their faces on them.

...Oh my goodness.  I'm so lame.  I just saw that the # of fingers they're holding up adds up to five.  Like, the guy in front has 5 and 5, and then Yunho and two of the back-up dancers' fingers add up to 5.  I'm so lame...OTL