Jukebox - Collaborative music player
Plexamp - A small music player with a number of unique features
Festify - Festify is a free Spotify-powered app that lets your guests choose which music should be played...
Vinyls - Vinyls is a music player that lets you listen to your music without any complicated setup.
PartyOn - Let everyone DJ together, anywhere
TuneMeet - Chat with people who are listening to the same song