Beyoncé & Rihanna feature in star-studded promo clip for TIDAL...

Beyoncé and Rihanna join the likes of Usher, Alicia Keys, Madonna, Nicki Minaj, Coldplay's Chris Martin, Kanye West, Calvin Harris and more for a new star-studded promo clip for music streaming service TIDAL.

The Swedish-based, high-fidelity music service was purchased by Jay Z last month for $56m, and an official announcement about their new plans will take place later tonight. Full details here, and check out the promo clip inside.

5 more hours...TIDAL.com @TIDALHiFi #TIDALforALL http://t.co/PJpMD488rM
— Rihanna (@rihanna) March 30, 2015

Thoughts?