The Britney bot tweeted this last night:
The U.S. Marines of 266 Rein and HMLA 169, located "deep in the heart of Afghanistan," posted the clip on Monday. We're particularly partial to the dude who pops and locks during the dubstep breakdown. Watch for yourself.
For lots more pics, videos and up-to-the-second dish on Britney, be sure to check out her Popdust Artist Page.