Kendrick Lamar surprised fans by dropping a new album on Thursday (March 3), of previously unreleased, unmastered, and untitled songs. The album, aptly titled Untitled Unmastered, features song titles with dates ranging from 2013 to 2016: 

1. "untitled 01 08.19.2014."
2. "untitled 02 06.23.2014."
3. "untitled 03 05.28.2013."
4. "untitled 04 08.14.2014."
5. "untitled 05 09.21.2014."
6. "untitled 06 06.30.2014."
7. "untitled 07 2014 – 2016"
8. "untitled 08 09.06.2014."

You can stream the album on Spotify and Tidal, and it's also for purchase on iTunes

Source: Billboard