Spotify may reign supreme, but who are the major players missing from the streaming giant?s catalog?
Two-time Grammy winner Garth Brooks refused to put his music on any streaming services for years.
But he was convinced to release his albums exclusively on Amazon Music Unlimited in 2016.
Most of Aaliyah albums are locked away with her uncle and manager Barry Hankerson.
You can only listen to her first album on Spotify for now though lawsuits may change that soon.