The physical CD release of its explicit edition followed on March 11 and an edited version was released on March 18. Untitled Unmastered was released to digital retailers and streaming services on March 4. In an interview with Spin, vocalist Anna Wise, while recalling the demos that appear on Untitled Unmastered, claims she knew of the compilation album's existence for an undisclosed amount of time, and was asked to keep it a secret until its release. Later that day, Lamar confirmed that the tracks were unfinished demos from To Pimp a Butterfly. These dates indicate that the songs were written and recorded at various points between 20. It spans 34 minutes and features eight untitled tracks, each dated. The project was officially released on the iTunes Store later that day. Following his acclaimed performance at the 2016's Grammy Awards, which included aspects of another new untitled track, Lamar revealed the existence of a collection of tracks that did not make it onto Butterfly: 'I got a chamber of material from the album that I was in love where sample clearances or something as simple as a deadline kept it off the album.' įollowing hints of a new release from Lamar's label Top Dawg Entertainment, and allegedly aided by NBA player LeBron James's public request to TDE head Anthony Tiffith that Lamar's untitled work be released, Untitled Unmastered first surfaced on Spotify on Macontaining eight untitled tracks but without an apparent release date.

In January 2016, he performed another untitled song on The Tonight Show Starring Jimmy Fallon. In December 2014, while preparing for the release of his third album To Pimp a Butterfly (2015), Lamar performed an unreleased, untitled track as a musical guest on the final episode of The Colbert Report. Thundercat, who appears on six of the album's tracks, was unaware of Untitled Unmastered until 'maybe a day before' its release.

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