Not their first commercial single like most people believe. That honor goes to “The Funeral.” “Grindin'” is their biggest single in their career thus far and has not 1 but 2 (needless) remixes on their debut album.
During an annotation session with genius, Pusha explained how the “Grindin'” instrumental was almost given to Jay Z:
Pharrell makes the beat and calls me and says if I don’t get to the studio in ten minutes he’s gonna give Jay Z the beat. And he knows that is one person that I don’t ever want to have a Pharrell beat before I hear the beat.
It’s just the cardinal rule: “Don’t do that, Pharrell.” That causes knock-down, drag-out arguments.
Since “Grindin’” I’ve always rhymed over beats that are sort of left of center.