Well, the dress has been found ... to be a fake!
The thief who took the gown says he took the dress from Lupita's room at The London after finding the door ajar.
[Image via WENN.]
Our favoritest gym rat looked simply Madge-estical in a lace kimono dress, Chanel fingerless gloves and liquid leather knee-high boots.
It may not be proper gym attire, but those boots of hers say she's ready to kick some ass and burn calories!
[Image via AP Images.]