Iris - Goo Goo Dolls
No, i'm not a fan of Goo Goo Dolls. Let me make that clear before you jump to conclusions. I just like this song.
It's one of the songs that i feel like an acoustic version of it would be just as good. Imagine a male vocal singing it slightly-effortlessly and a single guitar. I'd listen to it repeatedly. My eyes would be closed and It can take me to another world.