It is official: Jay Z's move into the music streaming business has arrived and he is bringing a lot of his friends With him. At an industry event today at New York City's James A. Farley Post ****** in Herald Square, Jay Z an**unced the launch of Tidal With his 16 artist partners. The event was live streamed as Jay Z an**unced his plans for the Hi-FI service With Madonna, Kanye West, J. Cole, Nicki Minaj, Rihanna, Usher, deadmau5, Jason Aldean, Jack White, Daft Punk, Beyoncé, Arcade Fire's Win Butler, Alicia Keys, Coldplay and Calvin Harris.