"Return of the Mack" was by far Mark Morrison's biggest U.S. hit: It peaked at #2 on the charts in 1997. (For more information on his string of hit U.K. singles and multiple run-ins with the law, see this page.)
But Morrison's not down or out: He's releasing King of British R&B: The Best Of...Mark Morrison this summer; a European tour will coincide with its release. He's also appeared on "Innocent (Misunderstood)" a 2008 single by rapper Cassidy.