Usher, Rihanna, Nicki Minaj, Madonna, Dead Mouse, Kanye West, Jay Z, Jason Aldean, Jack White, Daft Punk, Beyonce and Win Butler attend the Tidal launch event #TIDALforALL at Skylight at Moynihan Station.(Getty Images)
Daft Punk and Beyonce onstage at the Tidal launch event #TIDALforALL at Skylight(Getty Images)
Alicia Keys, Nicki Minaj and Beyonce attend the Tidal launch (Photo by Kevin Mazur/Getty Images For Roc Nation)
Nicki Minaj, Madonna and Deadmau5 (Getty Images)
Rihanna, Nicki Minaj, Madonna, Deadmau5 and Kanye West (Getty Images)
Rihanna and Nicki Minaj (Getty Images)
Alicia Keys, Nicki Minaj and Beyonce (Photo by Kevin Mazur/Getty Images For Roc Nation)
Madonna onstage at the Tidal launch event #TIDALforALL at Skylight at Moynihan Station. (Getty Images)