LOS ANGELES (AP).- The Los Angeles County Museum of Art celebrated the opening of its newest exhibition hall on Saturday with a glitzy party, complete with Hollywood heavyweights, art icons and entertainment by Christina Aguilera. Among the actors in the star-studded crowd were Tom Hanks and wife Rita Wilson, Teri Hatcher, James Franco, Joan Collins, Don Cheadle, Molly Sims and Olivia Wilde. Producers Brian Grazer and Mark Burnett and reality starlets Nicole Richie and Kim Kardashian also attended Saturday’s fundraising event, which had the glamor of a film premiere and generated nearly $5 million for LACMA Museum trustee Jane Nathanson called it “the most spectacular and successful fundraiser for art in Los Angeles.” Local high school students clad in colorful 18th century costumes welcomed guests to the private black-tie affair, called “The Unmasking” as it revealed the sprawling new building that broke ground in 2008. Guests we