Beyonce has fun with Alicia Keys backstage at Jay Z's Tidal launch

Usher, Rihanna, Nicki Minaj, Madonna, Deadmau5, Kanye West and Jay Z

Beyonce and Daft Punk

Jay Z

Alicia Keys, Nicki Minaj and Beyonce

Rihanna and Deadmau5

Nicki Minaj, Madonna, Deadmau5, Kanye West and Jay Z

Beyonce

Rihanna, Alicia Keys, Madonna and Beyonce

Rihanna

Rihanna and Madonna

Usher

Rihanna and Madonna