 "Nothing Compares 2 U", an emotional ballad, became more widely known five years later when a cover by Sinéad O'Connor was released as a single to worldwide success.The album was released on vinyl; following the success of O'Connor's version of "Nothing Compares 2 U" a CD version of the album was released in Japan and Germany/Europe.Alternate recordings of several of the songs from the project featuring Prince on vocals were recorded, but most remain in the vault at Paisley Park Studios.