Jay Z , Rihanna, Beyonce and many more attend the Roc Nation Tidal press conference

    30 Mar 2015, New York City, New York State, USA — Roc Nation hosted a super star-studded press conference at Moynihan Station in NYC on Monday. Alicia Keys, Beyonce, Jay Z , Nicki Minaj, Madonna, Usher, Rihanna, Daft Punk, Jason Aldean and others were front row for the epic announcement of Jay Z’s new streaming app, Tidal. Pictured: Beyonce, Rihanna, Kanye, Jay Z, Alicia Keys, Daft Punk, Jason Aldean, Usher, Nicki Minaj, DeadMau5, Madonna — Image by © 247PAPS.TV/Splash News/Corbis