Welcome to Thursday evening everyone - just one more work day to go and we'll be at the weekend once again. This afternoon started with a bang, with Spotify holding a press conference to announce a number of things. Perhaps most importantly, the service has 1 million paying subscribers in the US, with 5 million worldwide. The company also launched Spotify Collections and the Spotify Music Graph today, announcing a new web app for all users too. Finally, we found out that Metallica's full catalog of music has been added to Spotify, so all of you metal fans have a reason to celebrate this evening.