U2 singer and activist Bono has been given a US honorary award for his humanitarian work in Africa.
Accepting the Liberty Medal in Philadelphia last night, the U2 frontman called on people to keep working to solve the world's problems.
"When you are trapped by poverty, you are not free. When trade laws prevent you from selling the food you grew, you are not free," said Bono.
"When you are a monk in Burma this very week, barred from entering a temple because of your gospel of peace . . . well, then none of us are truly free."
Bono and the organisation he co-founded - Debt AIDS Trade Africa - received the award from former Liberty Medal recipient George Bush senior at the National Constitution Centre.
The award comes with a $100,000 prize, which Bono said will be donated to the organisation.
Bono co-founded Debt AIDS Trade Africa in 2002 to work with religious groups on global disease and hunger issues.
Calling the United States "my country", Bono said he was a fan of the country despite its problems because of the country's contributions to the world.
"America is not just a country, it's an idea, isn't it? It's a great and powerful idea," he said.