Plausibly confirming a previously speculated meeting prior to the GRAMMYs, Madonna, Beyonce, Rihanna, Nicki Minaj, Calvin Harris, Jack White, Kanye West, Jason Aldean, Daft Punk, and Coldpay's Chris Martin were featured in Jay Z's Tidal teaser video.
Other artists like Usher, Alicia Keys, and Arcade Fire appeared via Skype.
Jay Z will formally announce the launch of Tidal this evening at 5pm ET. The announcement livestream will be available on Hypebot.com
Watch the teaser here: