When Wieden brought the “Just Do It” slogan to Nike, he didn’t reveal his inspiration for it. If he had, we’d bet Nike’s $47.81 billion that they would have never green-lit it.

Nike stock was down just over 3 percent on Tuesday, at $79.60 a share, but it's too early to tell how it will ultimately fare. Nike did not immediately return ABC News' request for comment.

But if “Just Do It,” Brown’s new song with Ferg, is any indication, the Celtics star and 2024 NBA Finals MVP clearly has some scores to settle — particularly with Nike.