The Queen and Duke of Edinburgh joined the London Symphony Orchestra (LSO) on Wednesday night for their centenary concert at London's Barbican.
The concert included the theme tune to Star Wars
The royal pair chatted to fellow guests prior to the concert, held in aid of the Lord Mayor's Appeal 2004 - Music And The Arts For Everyone.
Culture Secretary Tessa Jowell and Arts Minister Estelle Morris also attended the concert.
The LSO's first concert took place on 9 June 1904 at London's Queen's Hall.
The 100th anniversary concert was broadcast live on Radio 3 and BBC Four, and began with the national anthem, led by the orchestra's principal conductor, Sir Colin Davis.
The concert included the last movement of Beethoven's Fifth Symphony, a nod to the debut concert in 1904 which included the same piece.
Wednesday's repertoire also included the theme to the film Star Wars, originally recorded by the LSO, and Mozart's Ch'io mi Scordi.
Cash raised from the ticket sales aims to boost the profile of music and arts education and community projects in London.