Kim K Loses Her Ass in Vegas

8/18/2008 1:20 PM PDT BY TMZ STAFF
Yes, video can be deceiving. Kim Kardashian had a 911 emergency over the weekend when she performed in Vegas with the Pussycat Dolls. Seems part of her ass disappeared.

Our spies tell us hours before going on stage, she was fitted for her costume but it was too big ... in the butt Bob. Kim K lost weight in all the wrong places. She got cinched up with her getup and went on stage.

Caution: Things really may appear larger than they really are, then again, she does have a big ass.