Following the fun run event, in which a man ran a marathon on a treadmill
and the arrival of the giant yellow rubber duck
in Darling Harbour earlier in the day, a concert was held from 8pm to 11pm on Saturday, marking the start of the arts festival.
Crowds of people packed The Domain park to watch the free concert. Some had brought along picnic blankets to sit on, but most were dancing to the live music, especially closer to the stage where the crowds were more densely packed.
estimated that approximately 30,000 people attended the event.
The police praised the well-behaved Festival crowds and said that no arrests were made.
More images of the event can be seen here
For more information see the Sydney Festival 2013 website