Kendrick Lamar's got the whole industry going nuts with his new song "The Heart Part 4," a nearly-five minute tour de force that features three different beats and zero chorus. Everybody wants to know who he's throwing shots at with a couple targeted lines, but the better question is who produced this magnificent three-piece suite?

The answer is four producers—SykSense, Alchemist, DJ Dahi and Axl Folie, according to Syk, who made the first beat you hear on the song. And those harmonies you hear at the beginning? That's Khalid, the singer from El Paso, Texas who's made waves with his huge song "Location" (Wayne just hopped on the remix, FYI). It makes sense Khalid's vocals are featured on that part of the song; Syk did production on the singer's debut album American Teen, which just dropped earlier this month.

Now a little history. SykSense has been getting busy on the production side for years, contributing to projects like Travis Scott's Days Before Rodeo ("Backyard"), Tory Lanez's Lost Cause ("Selfish / York University"), Drake's If You're Reading This It's Too Late ("Know Yourself," "6 God") and plenty more.

Alchemist, best known as one half of The Whooliganz (just kidding), is a legend in the game, DJ Dahi broke out after producing "Money Trees" off good kid, m.A.A.d. city, and Axl Folie has done production work for Mac Miller ("Two Matches"), Little Simz ("Top Down"), Kendrick ("m.A.A.d. city") and others.

Congrats to all four of these guys for producing such a crazy track. Now we wait for April 7.

Twitter Thinks Kendrick Lamar Disses Big Sean on “The Heart Part 4″

More From XXL