Kendrick Lamar's second big label album, "To Pimp a Butterfly" was accidentally released on Sunday, March 15 night.

According to HuffingtonPost, Lamar's "To Pimp a Butterfly" leaked on iTunes a week in advance of its scheduled release and the web immediately erupted over the news. Lamar's follow-up to "Good Kid, m.A.A.d City" was a leading choice for the most-anticipated release of spring. The album was yanked from iTunes.

Billboard noted that chief executive of Lamar's label Top Dawg Entertainment, Anthony Tiffith seemed puzzled over the drop. He pointed an accusatory finger at label partner Interscope on Twitter.

The hip-hop recording artist, who conveys more sobrieties and transmits bigger idea than rapper Kanye West, is mainstream hip-hop's thinking man and the commercial underdog to Drake's chart-controlling hegemony. Lamar's new album, "To Pimp a Butterfly" features a closing number that's beyond compare - and not simply because of its 12-minute length.

The final track, "Mortal Man" is an imagined interview with the legendary Tupac Shakur who passed away in 1996.

Radio.com notes the audio is woven together to create a harmonious track that truly seems like Lamar is speaking to the dead rapper. However, while Lamar's part has modern day origins, Tupac's side commenced in a 1994 interview with Sweden's P3 Soul radio show. In addition, the song also includes a poem, Lamar says he wants the legendary Tupac to hear, however we never get Tupac's thoughts on it.

The full song was annotated by Genius, with the website claiming that the song was influenced in part by a South Africa trip last year. Radio.com notes that Lamar would have been either 6 or 7-year-old at the time of the original interview.

The full album has been taken down from iTunes and we will need to wait and watch if the record will be available again before its original March 23 scheduled release date.