My world-MY FAVOURITE SONG

I love this song because I can listen to it when i'm running, working or other things.
This song makes me concentrate in what I want and in what I need.
This song also motivate me., it's perfect in anytime, I think it's the most appropriate for me, when I'm sad, this song makes me feel better and when I'm happy, this song makes me feel like I'm on fire!
This the song which I like:
http://www.youtube.com/watch?v=dX3k_QDnzHE