Responding to a rash of recently launched mobile apps designed to make music discovery a more social experience, Shazam -- the original music ID app -- introduced a new feature today called Shazam Friends.
The update lets Shazam users share a real-time feed of songs they've identified via the service with other Shazam users and via Facebook. Friends receiving the feed can then listen to 30-second samples of each song, link to buy the song in iTunes, watch music videos, read reviews and access other information about the artist and the song.
The feature requires an update to the app, which today is available only for the iPhone version, with support for Android coming in a few weeks.
With this step, Shazam catches up with new apps like recently launched SoundTracking and AOL's Play. In its favor, Shazam is already the leading song ID app in the marketplace, boasting 3 million song IDs a day. However Shazam is tacking on a social layer to the app, while its rivals were built with a social layer from the ground up. Which proves the more important foundation is something worth watching as music fans choose between them.