Simon is one of the many Zim musicians who have have found their footing in bands before heading out to pursue solo careers. Chimbetu first found success in the Marxist Brothers. Formed by Simon, along with his brothers Naison, Brian and Allan, the band had a string of hits during the 1980s and early 1990s. Despite backing Simon on his first solo effort, Karikoga, The Marxist Brothers eventually dissolved in the mid-90s as the members left to pursue their own careers, while others joined Simon's backing band, Dendera Kings.