How to Set Up Background Music on Facebook
Facebook allows you to use music players and streaming music apps on your Facebook profile. Facebook does not allow music apps that attempt to automatically start when a friend visits your page like MySpace. You can install the "Music" app, which will allow you to create playlists for your visitors to enjoy while they peruse your profile. You will also be able to use the app to stream music while using Facebook.
Login to your Facebook account using your user name and password.
Visit the Music App at facebook.com/iLike.
Click the "Go to App" button.
Click the "Allow" button to let the app access your Facebook information.
Add songs to your profile by clicking the "iLike" next to the name of songs that you like.
Manage, add, play and delete songs from your playlists by selecting the "Music" link on the left side of the screen.