The Irish band The Waterboys take the words from poetry by W.B. Yeats and set it to music with images from Iran since June 2009.
The band's Mike Scott explains, "[We were] inspired by the amazing scenes of hundreds of thousands of Iranian people standing up for their rights and freedom. I took the words from two old Yeats poems, in which he was writing about Irish freedom fighters. But his words apply to any freedom fighters, anytime, anywhere in the world."
They shall be remembered for ever
They shall be alive for ever
They shall be speaking for ever
The people shall hear them for ever
Let the sea bear witness
Let the wind bear witness
Let the earth bear witness
Let the stars bear witness!
(hat tip to Ms EA)