Metallica available on Spotify after landmark agreement

Metallica had previously kept its music off streaming services and had sued Napster in 2000. Credit: Spotify

Metallica's back catalogue is available on music streaming service Spotify for the first time after a landmark agreement between the two parties.

The company made several announcements at a New York event that included a conversation between Metallica drummer Lars Ulrich and Spotify backer Sean Parker, who also co-founded Napster and and was an early investor in Facebook.

Ulrich said the decision to join Spotify coincided with the fact the band now owns its entire catalogues of music.

Spotify also revealed that it has 20 million active users worldwide and that it has added a Twitter-like functionality that allows users to follow one another as well as celebrities and music producers.