MOCA 30th anniversary gala: The scene

Photographers are lined up for the red-carpet arrivals at the MOCA New 30th Anniversary Gala.  (Ann Johansson / For the Times)

Singer John Legend and model Chrissy Teigen attend the celebration.  (John Shearer / Getty Images)

Cocktails are served during the MOCA New 30th Anniversary Gala.  (Ann Johansson / For the Times)

In another “What’s she wearing?” moment, Lady Gaga walks on-stage.  (Ann Johansson / For The Times)

Artist Francesco Vezzoli performs.  (Ann Johansson / For The Times)

Artist Francesco Vezzoli, right, and Lady Gaga perform during the Museum of Contemporary Art celebration in Los Angeles.  (Ann Johansson / For the Times)

Brad Pitt and actress Angelina Jolie peruse the art exhibit.  (Stefanie Keenan / Getty Images)

Artist Francesco Vezzoli, left, and pop star Lady Gaga perform.  (Ann Johansson / For The Times)

Gwen Stefani at the gala.  (Ann Johansson / For the Los Angeles Times)

One of the exhibits at the MOCA gala.  (Ann Johansson / For The Times)

Gala co-chairman Eli Broad, a major contributor to the museum, speaks at the dinner.  (Ann Johansson / For The Times)

Bolshoi Ballet dancers perform during the dinner. RELATED: Photos: Museum of Contemporary Art’s 30th anniversary gala red carpet   (Ann Johansson / For The Times)