The rapper helped select the 14 previously unreleased tracks on the album with The Prince Estate boss Troy Carter, and the project will drop exclusively on his TIDAL streaming service on June 7.
But he'll give fans a taster on the eve of the release and stream the party to subscribers.
Announcing the news on Wednesday, May 29, Jay-Z said, "Prince led the way, for artistic freedom, for ownership. He's one of the bravest people I can think of in the industry. He trusted us, not just me, but TIDAL, to continue his fight. Trying to help further that legacy through his music is both an honour we couldn't pass up as an organisation dedicated to empowering artists. This gives his true fans that peek behind the curtain."
Prince was a fan of the streaming service and spoke highly of Jay-Z's company when it launched in 2015, stating, "After one meeting, it was obvious that Jay-Z and the team he has assembled at TIDAL recognise and applaud the effort that real musicians put in 2 their craft 2 (sic) achieve the very best they can at this pivotal time in the music industry."
"Originals" will only be available via TIDAL until June 21, when the album will be released to the world.