We all got excited when Kendrick Lamar posted a cryptic “IV” on Instagram earlier today, and now we know exactly what he was referring to: a new single called “The Heart Part 4,” the fourth installment in his series of “The Heart” tracks. (Another “The Heart Part 4″ with Schoolboy Q on it leaked almost two years ago, but this is a different song.) At the end of the track, Kendrick teases a new release, rapping, “Y’all got till April 7 to get y’all shit together,” so please, get your shit together by 4/7. Also, there’s this line: “Donald Trump is a chump, know how we feel punk/ Tell em that God comin’, and Russia need a replay button, y’all up to something.” Find the track on iTunes here and stream below.