Facebook app / widget for jamroom website

I have a jamroom-based website (it's a music website script that allows users to upload their songs for stream & download) and I would like to create a widget/facebook app so that registered users can share their music on their facebook profiles. Previous knowledge of jamroom would be highly beneficial. I need the app to display the user's music, with links to stream & download directly from their facebook page. It also needs to contain a link back to their jamroom profile page to generate more hits to my website.