Truth

just be honest - this is the song that makes you think of me.

Walking the streets with you and your worn-out jeans
I can't help thinking this is how it ought to be
Laughing on a park bench, thinking to myself
Hey, isn't this easy?

And you've got a smile that could light up this whole town
I haven't seen it in a while since she brought you down
You say you're fine, I know you better than that
Hey, what ya doing with a girl like that?

She wears high heels, I wear sneakers
She's Cheer Captain and I'm on the bleachers
Dreaming about the day when you wake up and find
That what you're looking for has been here the whole time

If you could see that I'm the one who understands you
Been here all along, so why can't you see?
You belong with me

[Taylor Swift - You Belong with Me]

because you hum it and sing it under your breath all the time.