Brit Back to Boogie-ing

The hard-working mama Britney Spears was back in the dance studio last night, rehearsing new moves for her live birthday show (or maybe even a new video?)

Once again, she brought an umbrella to shield her from the flashes.


But just what's on her Adidas track suit? That's not what I think it is, is it?

Check out this video to see what Brit's umbrella armor was "protecting" her from: