Wait a second... WHO wrote Keith Urban's new song?

I was a little surprised when I found out that ED SHEERAN wrote Keith Urban's new one "Parallel Line"! Keith has praised Ed's live show and songwriting before, telling Rolling Stone "I'm flabbergasted at the level of songwriting. Thank God for him to remind us in the midst of all this ringtone-song world we live in that actual real songs and songwriting still exist." What do you think of the new song??? Let me know on Twitter @bullsacramento