That's such a ridiculously hard question to answer because there are so many songs that I would want to listen to. My first instinct is to go with "Never Think" by Rob Pattinson (I know, shut up.) because it's the most listened to song on my iPod. I used it as a lullaby with my roommates last year. Then I think, no, ridiculous, something Dave Matthews Band because they're my all time favorite band and I could listen to them forever and never get sick of them. But I decided that if I had one song to listen to for the rest of my life then it would be Hillsong United's "From The Inside Out" because that song never fails me and will keep my faith alive.