His friendship with Kim Weston, for whom he was musical director, led to his recording for RCA, then for moonlighting Motown Vice-President Barney Ales, the owner of the Prodigal label.

He would later duet with Teena Marie on the song "We've Got To Stop Meeting Like This" from her 1984 Epic album, Starchild and serve as the musical director for The Four Tops for several years.

He became an official member of the Tops in 1999 when lead singer Levi Stubbs was too ill to continue singing with the group.

In 2007, he released Ronnie Mac & Company, which featured collaborations with Kirk Whalum, Kathy Lamar and fellow Four Top Theo Peoples.

Throughout his career, Ronnie has also worked with Bobby Womack, David Ruffin, Smokey Robinson, Angela Winbush, the Whispers, Carrie Lucas and Eddie Kendricks.