'Untitled Unmastered' appears on Spotify -- Is a new Kendrick Lamar album coming?

The title, tracklist and album art say almost nothing, but it's already the most talked about album of the week.

Kendrick Lamar, fresh off his incendiary Grammy performance, might have a new record coming any day. An album billed as "untitled unmastered."  appeared on Spotify as a placeholder after...