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.]
Nicola Formichetti sent his spring collection for Mugler down the Parisian runway on Wednesday night.
Sadly, Lady GaGa wasn't able to strut her stuff down the runway again, but she did create a short film that played in the background.
Check it out in the clip (above)!!