Yesterday afternoon, Jay Z re-launched music streaming service TIDAL alongside some of the biggest names in music, including wife Beyonce, Kanye West, Usher, Rihanna, Alicia Keys, Madonna, J. Cole, Coldplay, Deadmau5 and more.

While the ad for the service showed these celebs in business mode, they took a little time out to have some fun as well, mixing and mingling backstage at the official press conference. See these A-listers let their hair down above.

Source: Instagram