Yesterday, Helen Mirren and Taylor Hackford have attended the South Coast Plaza 50th Anniversary Gala celebration on Monday night. The festivities took place at the Renée and Henry Segerstrom Concert Hall at Segerstrom Center for the Arts, where Henry’s widow Elizabeth Segerstrom hosted a concert by the Mariinsky Theatre Orchestra, presented by The Philharmonic Society of Orange County. Conducted by maestro Valery Gergiev, a close friend of Henry Segerstrom’s, the program featured Pyotr Ilyich Tchaikovsky’s “Piano Concerto No. 3” performed by Denis Matsuev. The event drew art world luminaries including Ralph Fiennes, Plácido Domingo, Frank Gehry and Bill Viola, who were seated in the president’s circle with Elizabeth Segerstrom and Princess Michael of Kent. Pictures from the event have been added to the photo gallery.