His interview with Rolling Stone
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Confirmed tracks: "i", "The Blacker The Berry", "Mortal Man", "King Kunta" & "u"
On "King Kunta", a stomping blast of James Brown funk, he imagines himself as the titular slave from Roots, shouting the punchline "Everybody wanna cut the legs off him!/Black man taking no losses".
"Mortal Man" name checks everyone from, Mandela, to MLK, all the way back to Moses".
Lamar also points out that the fans who scratched their heads at "i" had yet to hear "u" - its counterpoint on the album. "i" is the answer to "u" he says. The latter is four and a half minutes of devastating honesty, with Lamar almost sobbing over a discordant beat, berating himself about his lack of confidence and calling himself "a ****ing failure." It's the sound of a man staring into the mirror and hating what he asys, punctuated by a self-aware hook: "Loving you is complicated"