Roc Nation

Tidal goes after Prince's estate

CNNMoney obtained a copy of the petition which was filed Friday. It outlines an agreement between Tidal -- owned by the rapper Jay Z -- and Prince made before the pop star's death in April from an accidental overdose of the opioid fentanyl.

According to the document, Prince granted Tidal worldwide digital streaming rights to his next two "newly recorded and previously unreleased full length studio albums" in 2015.

The singer was well known for protecting his music, pulling it from You Tube and declining streaming services requests.