Great article from the Guardian that delights in drawing out just how influential T.S. Eliot's work has been on pop music: http://www.guardian.co.uk/music/musicblog/2012/may/23/ts-eliot-poetry-pop-music
From Dylan to PJ Harvey to Radiohead and Arcade Fire:
Eliot once wrote: "Genuine poetry can communicate before it is understood." True enough, many songwriters would say, especially if you can sing it.