Spotify has released a handful of stats from its first year in the United States.

Music fans have listened to 13 billion songs on the streaming music service since its arrival in the US and 27,834,742 of those songs have been shared over social networks.

Facebook is responsible for 55.3% of those shares while 41.5% of songs were shared through Spotify itself. Twitter claims 2.7% of shares with 0.3% going through other avenues.

Spotify claimed 3 million paying customers worldwide ...