BSEARSHALOWEEN1031_01.jpgBSEARSHALOWEEN1031_04.jpgBritney Spears BSEARSHALOWEEN1031_26.jpgWe've all seen Britney Spears surrounded by paparazzi - they're just not usually this hot! Last night, Britney broke out the most outrageous outfit she could find and headed out to the Green Door to shake her tail (literally!). Sexy as she was looking, however, we honestly had a hard time taking our eyes off Sam, Alli, and Lucy - and their X17 costumes!

Of course, Brit wasn't done breaking out the Halloween costumes - wait'll you see what she wore next!