11/22/2011 10:08 am ET | Updated Oct 11, 2012

Lady Gaga's Karl Lagerfeld Dress for the "Gaga's Workshop" at Barneys NY

Karl Lagerfeld/Chanel

Barneys NY always goes all out for the holiday season, so it seems only fitting that the department store teamed up with pop music's most over-the-top star: Lady Gaga. "Gaga's Workshop," a Gaga-decorated collaboration on the fifth floor of Barneys, opened on Monday night with the lady of honor wearing a custom-designed Karl Lagerfeld gown for the occasion.

Take a peek in our gallery below to see Gaga cut the ribbon at Barneys with fashionable friends such as Giovanna Battaglia, Prabal Gurung and Nicola Formichetti, and let us know how you think her gown compares to Lagerfeld's sketch above.


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