Facebook launches ‘Listen with Friends’ Feature

Facebook announced on their blog a new real-time group music listening feature called “Listen with Friends”:

Look for the music note in the chat sidebar to see which of your friends are listening to music. To listen with a friend, hover over their name, and click the Listen With button. The music will play through the service your friend is using. (source)

Judging from the screenshots among the first services to make us of this are Spotify and Rdio.