Amie St has launched a Facebook application, called Fantasy Record Label, that nicely ties in with existing Amie St accounts and gives you a good amount of functionality within the Facebook app.
Using the same popularity system as you see on Amie St, songs that are lesser known are cheaper in price and will gain with its popularity as determined by the community. Each song can be rated by you (love it or leave it), and you can add songs to your label as well. These labels, which is the equivalent of your all star fantasy sports team, compete to earn you points if others agree with your picks. Points can be traded in as credits towards the purchase of songs.
Speaking of points, you get a few free ones just by adding the Amie St Facebook application. Discover music by checking out your personal recommendation list, editors' picks, what your friends have on their love it lists, and the rising labels section.