just focus to where the camera's focus asking u to. ignore the lights.
if you could resist Yesung 2:35 u'll see Eunhyuk-Leeteuk do the High Five, at Version 2 you can also see Donghae-Shingdong do the High Five. and I believe I heard some sound effect to the High Five, that I couldn't hear on the...
... you cut me open and i.... keep bleeding
:)