In an interview with Complex this afternoon, To Pimp A Butterfly producer Terrace Martin confirmed that Kendrick Lamar will not release the "Untitled" song that he premiered on the series finale of The Colbert Report back in December. According to Martin, who produced eight tracks on Kendrick's new album, there is no master recording of the song, which was written specifically for the live Colbert performance and intended to be "just a moment" rather than an official, commercial release. "It don't even exist nowhere in the world," Martin told Complex, "except on The Colbert Report." 

Addressing online speculation about To Pimp A Butterfly's producers, Martin denied rumors that LoveDragon is, in fact, Dr. Dre. Martin suggested, however, that LoveDragon's identity can be deduced from the writing credits for "How Much A Dollar Costs" and "You Ain't Gotta Lie (Momma Said)." (My guess: LoveDragon is Kendrick Lamar.) 

Check Complex tomorrow for our full Q&A with Terrace Martin, who spoke to us at-length about the studio sessions, musical influences, and social pressures that inspired the production of Kendrick Lamar's To Pimp A Butterfly.