Rivers of Babylon by Boney M.

Rivers of Babylon is Boney M's most successful single in the UK, Europe and the US. It is actually based on verses from the Book of Psalm. You might know some of the words:

By the rivers of Babylon where we sat down
Yeah, we wept when we remembered Zion
By the rivers of Babylon where we sat down
Yeah, we wept when we remembered Zion

However, guards at prisons such as Abu Ghraib and Guantanamo found 
different uses for the song:

First, the prisoner is strapped in a chair, as shown below 
(ok, maybe minus the nails and screws). 

Then the music is turned on real loud. REAL LOUD. For hours on end.
And there is no end in sight. 

I learnt about this during the Perdana Global Peace Organisation (PGPO) 
anti-war exhibition.

You learn something new everyday...