Question: "The Blacker the Berry" was released on February 9, 2015 as the second single from which third studio album by American rapper Kendrick Lamar?

Context paragraphs:
For Free? (Interlude): "For Free?  (Interlude)" is a song by American rapper Kendrick Lamar.  It is the second track on his third studio album "To Pimp a Butterfly", released on March 15, 2015.  It features uptempo bebop instrumentals, with Lamar rapping over them.  A music video for the song was uploaded to Vevo and YouTube on July 31, 2015.

Duckworth (song): "Duckworth" (stylized as "DUCKWORTH.")  is a song by American rapper Kendrick Lamar, taken from his fourth studio album "Damn", released on April 14, 2017.  The fourteenth and final track on the album, the song was written by Lamar and record producer Patrick Douthit, known professionally as 9th Wonder, and produced by 9th Wonder, with additional production by Bēkon.  The song's title is Lamar's actual last name.

Good Kid, M.A.A.D City: Good Kid, M.A.A.D City (stylized as good kid, m.A.A.d city) is the second studio album by American rapper Kendrick Lamar.  The album was released on October 22, 2012, by Top Dawg Entertainment, Aftermath Entertainment, and was distributed by Interscope Records.  The album serves as Lamar's major label debut, after his signing to Aftermath and Interscope in early 2012.  It was preceded by the release of Kendrick's debut studio album "Section.80" (2011), released exclusively through the iTunes Store as an independent album.

Humble (song): "Humble" (stylized as "HUMBLE.")  is a song by American rapper Kendrick Lamar.  It was released on March 30, 2017, by Top Dawg Entertainment, Aftermath Entertainment and Interscope Records.  The song, written by Lamar and Mike Will Made It and produced by the latter, was serviced to rhythmic contemporary radio as the lead single from Lamar's fourth studio album, "Damn".  The single became Lamar's second number-one single on the US "Billboard" Hot 100 after "Bad Blood" and his first as a lead artist.

Freedom (Beyoncé song): "Freedom" is a song recorded by American singer Beyoncé featuring American rapper Kendrick Lamar for her sixth studio album, "Lemonade" (2016).  The song was written by Jonny Coffer, Beyoncé, Carla Marie Williams, Dean McIntosh and Kendrick Lamar; it contains samples of "Let Me Try", written by Frank Tirado, performed by Kaleidoscope; samples of "Collection Speech/Unidentified Lining Hymn", recorded by Alan Lomax in 1959, performed by Reverend R.C. Crenshaw; and samples of "Stewball", recorded by Alan Lomax and John Lomax, Sr. in 1947, performed by Prisoner "22" at Mississippi State Penitentiary at Parchman.  Its production was handled by Beyoncé, Coffer and veteran hip hop record producer Just Blaze.

I (Kendrick Lamar song): "i" is a song by American rapper Kendrick Lamar.  It was released on September 23, 2014 as the lead single from Lamar's third studio album "To Pimp a Butterfly".  The song utilizes music from "That Lady", written by and originally performed by R&B group The Isley Brothers, elements from which were re-recorded rather than being directly sampled from the original record.  "i" won two awards at the 2015 Grammy Awards: Best Rap Performance and Best Rap Song.

These Walls (Kendrick Lamar song): "These Walls" is a song by American rapper Kendrick Lamar.  It was released on October 13, 2015, as the fifth and final single from his third album, "To Pimp a Butterfly" (2015).  The track was written by Kendrick Lamar, Terrace Martin, Larrance Dopson, James Fauntleroy and Rose McKinney.  It won Best Rap/Sung Collaboration at the 58th Grammy Awards.

The Blacker the Berry (song): "The Blacker the Berry" is a song by American rapper Kendrick Lamar.  It was released on February 9, 2015 as the second single from his third studio album, "To Pimp a Butterfly".  The song features vocals from Jamaican artist Assassin.  It shares its title with the novel "The Blacker the Berry" by American author Wallace Thurman, which deals with similar themes of racism.  The album version of the song also features additional vocals from neo soul singer Lalah Hathaway.

DNA (Kendrick Lamar song): "DNA" (stylized as "DNA.")  is the second single by American rapper Kendrick Lamar, from his fourth studio album "Damn", released on May 30, 2017.  The second track on the album, the song's lyrics were written by Lamar, while the production was handled by Mike Will Made It.  The song's music video was released on April 18, 2017 and features American actor Don Cheadle.

To Pimp a Butterfly: To Pimp a Butterfly is the third studio album by American rapper Kendrick Lamar.  It was released on March 15, 2015, by Top Dawg Entertainment, Aftermath Entertainment and Interscope Records.  The album was recorded in studios throughout the United States, with production from Sounwave, Terrace Martin, Taz "Tisa" Arnold, Thundercat, Rahki, LoveDragon, Flying Lotus, Pharrell Williams, Boi-1da, and several other high-profile hip hop producers, as well as executive production from Dr. Dre and Anthony "Top Dawg" Tiffith.  The album incorporates elements of free jazz, funk, soul, spoken word, and the avant-garde and explores a variety of political and personal themes concerning African-American culture, racial inequality, depression, and institutional discrimination.

Supporting paragraphs: The Blacker the Berry (song) To Pimp a Butterfly
Answer: To Pimp a Butterfly