Look at :05

How do they get the dancers in the front with the lights glared out in the back?

YouTube - Lady Gaga Poker Face HD AMAZING NEW Version From Just Dance The Fame Album (http://www.youtube.com/watch?v=QzdKlB7ktqc)

Perhaps a 4-point star filter
Special-Effects Filters: Star Filters (http://www.cs.mtu.edu/~shene/DigiCam/User-Guide/filter/filter-star.html)
and some added diffusion?

hm..interesting...

There is a plug in on my final cut pro that does that effect, its under Glow and is called Dazzle.