A new streaming service received an A-list launch, with some of the top names in popular music on hand to help get Jay Z’s new music service Tidal on track.

The Los Angeles Times reports that the lineup for Monday’s splashy rollout event included Madonna, Kanye West, Rihanna, Nicki Minaj, Jack White, Jason Aldean, Beyonce, Alicia Keys and many other top artists, along with the project’s mastermind, Jay Z. Tidal is seen as a rival to the music service Spotify.

“Describing itself as ‘the first music streaming service that combines the best high fidelity sound quality, high definition music videos and expertly curated editorial,’ the service will reportedly include two tiers of pricing and access,” the Times reports. “A basic service at $9.99 monthly will offer current industry-standard streaming fidelity with high-definition music videos. A second tier at $19.99 monthly will offer lossless, CD-quality streaming, HD videos and access to the service’s original editorial products.”

The Times notes that Jay Z sent out a message Sunday night saying: “The Tides They Are A-Changing,” invoking another artist who had an impact on the music landscape, Bob Dylan.