Lady Gaga shocked fans after the singer stripped down at a concert in London.

No one can ever anticipate what Lady Gaga has in store for her fans during her performances. One things for sure though, the singer will always be take her "Little Monsters" into a shocking ride. This weekend, the "Applause" singer amped up the shock factor by stripping her clothes down and stood on stage naked during her performance at London club, G-A-Y.

Lady Gaga's performance at the club was unannounced. According to E! Online, Lady Gaga already surprised the audience by coming up on stage in a ghostly getup - timely for Halloween. She wore a white dress, her arms and hands powdered, and her blond locks backcombed. Her makeup was also ghastly. The overall effect did not put her preparations to waste though. She looked perfectly spooky as she promoted her new album, ARTPOP.

While at the club to promote, Gaga also performed for her fans. E! Online reports that the singer performed her single "Venus" live for the first time, as well as her other biggest hits.

What probably made the audience's jaws drop, however, is when Lady Gaga started taking of her white ghostly dress to reveal her naked bod.

Mirror U.K. reported that towards the end of her show, Lady Gaga took off her dress, staying completely naked onstage. Showing off her slender frame, the singer certainly left nothing to the imagination of her fans before she left the stage "ever-so dramatically."

Not fazed by the talks that followed her bare-all performance, Lady Gaga even tweeted how much fun she had on this show.  "Had an amazing night tonight at G-A-Y in London," she tweeted.  "After all these years you continue to inspire me."

Lady Gaga's new album ARTPOP wil drop this November.