The first of three songs on Eccojams to sample a Jimmy Jam & Terry Lewis production and the first to sample a track by one of the Jacksons, “A4” takes its main theme from “Morphine” by Michael Jackson.

It is one of the two tracks on the record to draw from 1990s material, and is especially poignant, as it meditates on Jackson’s relationship with drugs in the wake of the King of Pop’s drug-related death only a month prior to this track’s release.

At just 2 minutes it is the shortest song on the album.