PM Dung, alongside seven heads of state and government and foreign dignitaries from 18 countries, were present at the National Day Parade in Padang.
In total, 50 aircraft and 179 vehicles took part in one of the largest displays of aerial and ground military units ever held at the event.
Some 200,000 people gathered around Marina Bay to watch the parade on seven large LCD TVs set up around on a floating stadium.
Thousands of people sang Singapore's national anthem and saluted their nation during a colourful show of fireworks that concluded the celebration this year.
Earlier, Singapore heard for the first time a recording of Singapore's founding leader PM Lee Kuan Yew reading the Proclamation of Independence.
The recording, made in 2012, was broadcast at 9am on local radio and TV channels, and marked the start of Independence Day ceremonies island-wide.