Katy Perry to serenade Cindy Sherman, Barbara Kruger at Hammer gala Pop star Katy Perry in 2010. The singer will perform at the tenth annual gala at the Hammer Museum, honoring artists Barbara Kruger and Cindy Sherman. Michael Robinson Chavez / Los Angeles Times / September 18, 2012 September 19, 2012, 7:45 a.m. Museum galas are reliably glitzy affairs, complete with A-list celebrities wearing red-carpet fashion -- all for a good cause, of course. This year, the Hammer Museum will boast the likes of Katy Perry, Armie Hammer, Steve Martin and MSNBC personality Rachel Maddow at its 10th annual fundraising gala set for Oct. 6. The Hammer said this year's gala celebration will honor artists Barbara Kruger and Cindy Sherman. Hammer, the actor who appeared in "The Social Network" in the dual role of the Winklevoss twins, is co-chairing the gala with his wife, Elizabeth. He is the great-grandson of Dr. Armand Hammer, the oil tycoon and founder of the museum. Anthony Pritzker, the billionaire Hyatt heir and private equity manager, also will co-chair the gala with his wife, Jeanne. Pritzker sits on the Hammer's board of directors. The museum said Perry will appear in "a special performance" at the gala. Getting into the celebration won't be cheap. Individual seats are going for $1,500 to $7,500. Last year's gala raised approximately $1.7 million, according to the museum. The Los Angeles County Museum of Art will hold its own gala celebration on Oct. 27, honoring Stanley Kubrick and artist Ed Ruscha. Steven Spielberg is expected to pay tribute to the late Kubrick. The band Florence and the Machine will provide musical entertainment. Earlier this month, the Museum of Contemporary Art canceled its fall gala, though a museum spokeswoman said it will hold one in the spring. Art review: The Hammer biennial 'Made in L.A. 2012' succeeds Hammer Museum's $100,000 Mohn Award goes to painter Meleko Mokgosi