Mark Brown (born March 8, 1962), better known by the stage name Brown Mark, also styled Brownmark and BrownMark, is an American musician, bassist and record producer. Life and career. Born in Minneapolis, Minnesota, United States, Brown's early fame came when he was the bass guitarist of The Revolution, musician Prince's original touring (and later also his recording) band. BrownMark started working for Prince in 1981, one year out of high school.
https://en.wikipedia.org/wiki/Brownmark