It means that the girl has a crush on her guy friend. And she knows that he's happier when he's around her. But instend he choses to go out with a cheerleader.
It is a Pittsburgh sports song. I first heard it when our Pittsurgh Steelers were on their way to winning their 6th Super Bowl in 2009 and now my Pittsburgh Penguins play it at every home game on their way to winning the Stanley Cup of 2009. THE CITY OF CHAMPIONS
it means a lot. i used to sing this song if i have problems. And it help me solve it. It makes me fell happy and i fell i'm with god everytime i sing it.