IMG_9872.jpgChristina Aguilera IMG_9862.jpgKnocked up or not, it sounds like Christina Aguilera's not giving up her Halloween plans! When we spotted Xtina leaving an upholstery store with husband Jordan Bratman last night, our questions centered around what the pregnant pop star might be wearing tonight. Unfortunately, she kept her lips zipped as to her precise plans - although at least she confirmed (rather enthusiastically, we might add!) that she'd be dressing up!