Thanks for adding Prince but...

[AlbornozFerOk]

We need the song Gold (All that Glitters) and that add the Mariah Carey's version of "The Beautiful Ones" writed by Prince and don't added before because of the Prince rights. Now the song is in Spotify only sang by him.
And if you can add the Mariah Carey album Glitter

[MattSuda]

Hey @AlbornozFerOk

Spotify tries really hard to get music available on their service, but in the end the availability of music on Spotify is up to the artist and their music label.

This thread by Spotify staff explains why some music is not available:
https://community.spotify.com/t5/Content-Questions/I-want-an-artist-song-on-Spotify/td-p/1136005

[AlbornozFerOk]

But now they have the rights to put Prince, and I pay to listen that I like. And if they forgot some songs that are wroten by prince but singed by other artists, I wanted to. That's they right for the service you pay