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.]
The stylist Tweeted that even though the Will & Grace alum is her client, she wasn't responsible for dressing Deb in that fabulous red Swarovski-covered Michael Kors gown.
That's too bad, because she definitely Shut. It. Down. on the red carpet.
[Image via FayesVision/WENN.]