What's Your Favourite SONG IN ENGLISH?

This is the last week of our 6-week-program "Let's talk". 
And today I'm gonna ask you a really easy or a really difficult question - namely 
What's your favourite song in English?
Why?

I've thought long and hard which song I'd choose to be my number one. And I must say the choice is not the easiest as I generally enjoy listening to music. 
But there's one song that I always like coming back to. The lyrics come from a poem  Those Dancing Days Are Gone by William Butler Yeats. 
I absolutely love the poem, as I guess "I carry the sun in a golden cup and the moon in a silver bag" and my dancing days are definitely gone. The song is sung by Carla Bruni.  You can listen to it HERE.

Please share your choices in the comments below.