Oh wow.....so hard. I gotta agree with tbf on this one. I will never forget the feeling when I heard "How Long" begin! It will forever be associated with my first time seeing the guys and I had tears forming in my eyes when it started. It takes me back everytime I hear it now. In the previous survivor it would probably have gotten my vote here......but not anymore. It has much more meaning to me now! Therefore.........as much as I adore the song and the shared vocals.........
I cast my vote for What Do I Do With My Heart