Can anyone tell me what song this is from?

[jspenc]

I heard this song at a gig a few weeks ago and then again at university but I can't for the life of me remember what it is. I have transcribed what I remember from it on sibelius. Here is an image of it:http://imgur.com/lnfLRQFI have also hummed it here: http://vocaroo.com/i/s0tcbymcYroN
This has been bugging me for weeks!
I hope someone can help
Thanks