Kendrick Lamar performs in Brooklyn in December 2016. On Thursday night, Lamar released a new song, "The Heart Part 4," that seems to preview a new album by Lamar, to be released on April 7.
Bryan Bedder/Getty Images for American Express
"I think that there are moments in hip-hop culture and pop culture when we become ready for somebody to complicate our lives," says NPR's Frannie Kelley of rapper Kendrick Lamar.
Courtesy of the artist