JamBuddy - Find and collaborate with musicians around you thru Spotify
Metastream - Watch streaming media with friends
tuneX - Like tinder but for music creators
Watch2Gether - Watch2Gether is an app that allows multiple people to watch the same content simultaneously and interact with each other while watching.
Liyo - Stream your favorite music live with friends 🎶
Kosmi - Digital Hangouts Reinvented