MADONNA, USHER, RIHANNA, OTHERS GRACE PRESS CONFERENCE FOR JAY Z TIDAL APP LAUNCH

 It was a star studded event as so many celebrities including Madonna, Nicki Minaj, Kanye West, Usher, Rihanna, Alicia Keys, Beyonce graced Jay Z's press conference for Tidal App Launch in New York on Monday.

Tidal is Jay Z's new music streaming site that promises to deliver exclusive experiences for a monthly fee of $20.
Here are the photos of the event,