MOCA's 30th anniversary gala on November 14 raised $4 million for the museum. Now, the contemporary museum is auctioning off items from the one-night-only performance by Lady Gaga and the Bolshoi Ballet. Pieces for sale include a Prada-designed couture dress, a hat designed by Frank Gehry, and masks by Baz Lurhmann and Catherine Martin. All proceeds benefit the museum's exhibition and education programs. A one-of-a-kind Damien Hirst piano was already auctioned at the event for $450,000.