Bono and Edge performed with Pearl Jam tonight, part of the Make Poverty History concert in Melbourne.
A capacity audience of 20,000 at the Sidney Myer Music Bowl saw Edge and Bono join Pearl Jam for Neil Young's Rocking in the Free World - Edge turning in a particularly scintillating performance.
'To the Make Poverty History campaigners, we salute you,' said Bono. 'Keep on rocking in the free world.
Politicians have to do what you tell them to do.'
The G-20 - finance ministers from twenty nations who represent two-thirds of the world's population - are meeting in Melbourne this weekend. Campaigners are demanding that rich countries deliver on the agreed UN target of allocating 0.7% of gross national income to international aid.
Next month the two bands will be together on stage again - when Pearl Jam join U2 for the final date of Vertigo 06 in Honolulu.