Never been one to be too interested in "fan" songs. They are a nice sentiment, but they never muster enough creativity and are often end up being a boring ballad or generic pop track that doesn't do all that much. "One & Only" sort of combine both into one, but actually give something that isn't totally terrible. It's sweet, but has enough bounce in its beat to keep it from getting too dragged out. Unfortunately, it never quite gets to anything more than that.