Our World was the first live, international, satellite television production, which was broadcast on 25 June 1967. Creative artists, including opera singer Maria Callas, The Beatles and painter Pablo Picasso, representing nineteen different nations were invited to perform or appear in separate segments featuring their respective countries. The two-and-half-hour event had the largest television audience ever up to that date: an estimated 400 million people around the globe watched the broadcast. Today, it is most famous for the segment from the United Kingdom starring The Beatles. They sang their specially composed song “All You Need Is Love” to close the broadcast.