Jukebox

What it is, how it works
(from Vidcast main page)

Even when there are no events going on, you can always listen to the jukebox. Anyone can request a song by posting a youtube (and vimeo or soundcloud) link to the #jukebox tag and it will play for everybody.

Go to Jukebox now.

Alternatively, you can also broadcast from the Jukebox public Patter room, and it will play in Vidcast.