Foreign Minister Julie Bishop will attend a series of United Nations events in New York, dealing with issues from poverty to terrorism.
What could bring together a Pope, a president, a football superstar and an Australian foreign minister?
Pope Francis, US President Barack Obama, David Beckham and Julie Bishop will be among hundreds of world leaders, dignitaries and charity supporters in New York over the coming eight days to attend a series of UN events.
Ms Bishop will leave on Tuesday to lead Australia's delegation to the UN General Assembly, the largest annual gathering of world leaders.
A major focus of this year's meeting is the sustainable development summit.
"I will join world leaders to endorse an ambitious set of sustainable development goals (SDGs)," Ms Bishop said.
"The SDGs will have the eradication of extreme poverty by 2030 at their core and a strong focus on economic growth and gender equality."
Ms Bishop will also speak at a summit hosted by President Obama where she is expected to call for a greater effort to defeat Islamic State or Daesh.
She will also address the UN Security Council on the collective action needed to end the conflicts in the Middle East and discuss the humanitarian crisis and international counter-terrorism initiatives with leaders.
Reform of the UN system, better peacekeeping methods and Australia's priorities for the Paris climate change conference in December will also be on the minister's agenda.
Former prime minister Tony Abbott had been scheduled to attend but his successor Malcolm Turnbull decided not to go.