Pretty easy tune, though this won't work with the studio version.
It's based off of the version they played at Coachella
(http://www.youtube.com/watch?v=lXXr3ODPvm4&feature=related).
Pretty sure he uses a capo on the first fret, but this is without it.
All I want in lifes a little bit of love
To take the pain away
Getting strong today
A giant step each day
That pretty much repeats itself throughout the song.