Here's the demo version of "Battlefield" that Ryan Tedder (lead vocalist of One Republic) wrote and was released by Jordin Sparks. I've been listening to this over and over again on youtube since I discovered it.
video uploaded in youtube by user brandon02012
I'm familiar with the Jordin Sparks version and thought it was just okay. Hearing this version turned me into a fan of the song though. I guess when I found it was written by Ryan Tedder, my current favorite song writer, I appreciated "Battlefield" a whole lot more.