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.]
Even in a couture Chanel dress straight off the fall 2013 runway, the Royals singer still manages to make the look 100% her own.
The 16-year-old attended Tuesday's Museum of Modern Art Film Benefit in New York and gave her black tweed frock a punk twist by pairing it with a leather choker and a deep purple pout.
She added a bit of innocence to the ensem by donning white tights, which provided a stark contrast to her chunky black boots.
[Image via Ivan Nikolov/WENN.]