What is Tidal? Why is Everyone Turning Blue?

"If you've been seeing a lot of bright blue across your Twitter feed today, we have the answer as to why... celebs are supporting Jay Z‘s new music streaming service Tidal!

The music company, which will be a rival to Spotify, is launching today (March 30) and tons of stars are showing their support.

Beyonce, Rihanna, Kanye West, Madonna, Nicki Minaj, Chris Martin, Calvin Harris, Jason Aldean, and many more artists are