If you're like me and didn't find out about BarlowGirl's hidden song until just recently and you can't figure out how to get it, then this is for you!!
You can listen to "Image" for free if you go to: http://listen.grooveshark.com/#/song/Image/12331013. I think the song starts playing by itself, but if it doesn't there's a button that says "Play Song" that you can click. :)
Here's a site that has the lyrics: http://www.lyricstime.com/barlow-girl-image-of-god-lyrics.html