i just watched Celebration several times to see what was going on in the video.  I stopped and paused it on several occasions, to see the different images.  Lourdes does some type of floor move and is not just in the outside circle.  It took a couple pauses for me to see this.  Good job Lourdes !  The guy in the beggining I could not see what was on his chain around his neck.  Everyone in the video was definately having  a good time.  Madonna looks delicious .  I love the tipping of the sunglasses, reminds me of a gesture you did a long time ago in the early years.  The guy in the red boxer pants you are super hot!  Thanks Madonna for giving us a truely stylish celebrating video.