2010 American Idol runner up Crystal Bowersox co-wrote this soulful country duet with her husband Brian Walker, and they performed the tune together at their October 10, 2010 nuptials, at Uncommon Ground Café in Chicago.
Walker actually began the song in 2008, before Bowersox penned its bridge. Crystal told Lyndsey Parker of Yahoo Music. "Back before Idol, we were both open-mic musicians. We'd frequent the same place, and one week I'd go in with a new song that I'd written about him, and no one else in the room knew - but he knew! And then he'd get onstage and sing a song that he wrote for me. It was just love letter back and forth, for years. 'Mason' was one of those songs.'"