Okay this game it really easy, just type the next line in the song
Example:

Song:White horse

Person 1: Say you're sorry, that face of an angel

Person 2: Comes out just when you need it too

Person 3:as I paced back and forth all this time

Get it?
Lets contine the song.

Cause I honestly believed in you

stupid girl, i should've know, should've known

=)

I'm not the one you'll sweep off her feet