Beyonce Impostor Dupes Art Gallery

A Vienna art gallery expressed its disappointment after discovering that a visitor it had believed to be Beyoncé Knowles was in fact a doppelganger.

A local radio station admitted pulling the prank on the Albertina museum, which houses one of the world's largest collections of graphic art.

Erroneous reports first indicated that the music star had sent the double herself for the private tour so that she was free to do some shopping.

The Albertina's director, Klaus-Albert Schröder, was photographed beaming next to the Beyonce imitator and leading her around the exhibition...

Fake Beyonce looks nothing like the real deal!

Recent (actual) celeb visitors to the museum, which is in the heart of Vienna, include Hollywood stars Brad Pitt, Angelina Jolie and Nicolas Cage.

"We consider it an absolute cheek," said a museum spokeswoman, Verena Dahlitz. "We had a grain of doubt that it might have been her because she avoided eye contact with the director and she acted a little bit strangely."

The radio station spent the day with the faux Beyonce double "to see how people reacted when they could get up close to her," the station marketing manager said.

"But it wasn't our aim to pull the leg of anyone in particular."

Unlike last year's Jamie Lynn Spears impersonator, who ended up filing a complaint against the city of L.A. after standing in for the teen mom at LAX, we don't imagine this will result in any negative ramifications.