Kendrick Lamar To Pimp a Butterfly

On March 6th Kendrick tweeter a link to an iTunes page regarding his upcoming album, which appears to be due a release on 23rd March,

No tracklist confirmation, except for track 13 which is 'The Blacker the Berry'

Kendrick Lamar's sophomore album is going to be called "To Pimp A Butterfly"

Wesley's Theory
For Free? (Interlude)
King Kunta
Institutionalized
These Walls
U
Alright
For Sale? (Interlude)
Momma
Hood Politics
How Much A Dollar Cost
Complexion
The Blacker The Berry
You Ain't Gotta Lie (Momma Said)
I
Mortal Man

A handfull of people has the full album as of today. One of them is an editor at Section 80, a hiphop community, and he had this to say about the album:

"To Pimp A Butterfly is jazzy. It’s soulful. It’s (p-)funky. There are even elements of gospel and spoken word. It incorporates nearly every genre of black music and mashes them together flawlessly. Beats switch fairly frequently and each track bleeds into the next, making for a holistic, seamless experience. While it’s near-impossible to discern production credits, the hypnotic keys on “How Much A Dollar Cost” scream Dr. Dre (who also speaks briefly on “Wesley’s Theory”). To compare it to Kendrick’s past work, it’s more section.80 than it is good kid, m.A.A.d city, but it’s most certainly a beast of its own—and that’s a good thing."

While the US iTunes advance release was initially only including a clean version of the album, Google Play released the explicit version just moments later. Eventually the explicit album ended up on iTunes as well, and the album is now literally everywhere. The iTunes advance release was planned, as confirmed by the label to Fader.

There's even a Spotify version as well, see source.