Two Cs Dad says:

I have the sportband and run with my shuffle. I have a "Powersong" or two that I'd like to have associated with my profile. Do you have to be using the Nano to have an "official" Powersong?

 CrossHare says:

I'm in the same boat as you Two Cs. The closest thing I see is that you can edit your "Powersong" in each run. Go to a particular run and click on the pencil symbol (under your run chart on the left) and fill in the Artist/Title, etc. info.