Jay Z may have just fired a symbolic first shot in Tidal's war against Spotify.

You can no longer stream Hov's first album 'Reasonable Doubt' on Spotify, but you can, of course, stream it on Tidal.

We say "symbolic" because the rest of Jay's impressive catalog is still available on Spotify. Whether it remains there is another question.

Hov officially launched Tidal -- a higher cost premium alternative to Spotify -- last week amid much hoopla and celebrity co-owners. Since then Rihanna and Beyonce have both dropped exclusive tracks on Tidal.

Do you think Jay and the gang can win this war?